Amanda Bynes Troubling Behavior

Hours after Amanda Bynes was arrested for DUI ... the actress returned to the scene of the crime to continue partying at a Hollywood bar ... but TMZ has learned staffers REFUSED to let her inside.

Multiple sources tell us ... Bynes and some friends tried to enter the hotel bar at The Standard Hotel on Sunset Blvd. on Friday night ... but the doorman refused to let the actress inside.

We're told hotel staff members were aware Bynes had been drinking at the nightclub at The Standard on Thursday evening ... hours before her DUI arrest ... and didn't want to be associated with the actress in case she pulled a repeat performance.

Sources say Bynes and her friends left the hotel without incident.

As we previously reported, Bynes was popped in West Hollywood around 3 AM Friday morning after she allegedly clipped a cop car. She was released on $5,000 bail.

Calls to Amanda's rep have not been returned.

Amanda Bynes just went to an L.A. tow yard to pick up the black BMW she allegedly crashed into a cop car this morning ... wearing the exact same hoochie outfit she wore during the arrest.

Bynes -- who was clutching a bottle of water -- was clearly suffering from a painful hangover ... following her DUI in West Hollywood at 3AM.

As we previously reported, Bynes spent several hours in jail ... before posting a $5,000 bail.

Now, she's out ... and back on the road.

TMZ has obtained Amanda Bynes' mug shot ... taken moments after she was arrested for DUI in West Hollywood this morning.

Bynes appears to be in full makeup ... sporting an ashy pink dye job ... and a black blazer.

As we previously reported, Bynes allegedly swiped a cop car as she was trying to pass. Cops believe she was in no condition to drive.

Bail has been set at $5,000. She's still behind bars.

10:30 AM PT: Amanda has been released from jail in West Hollywood. On her way out, we asked if she's learned her lesson -- she doesn't say a word.

Amanda Bynes was arrested for DUI in West Hollywood early this morning ... TMZ has learned.

Law enforcement sources tell us, Bynes was attempting to pass a cop car in her black BMW ... when she sideswiped the right rear panel of the vehicle. She was pulled over and cops determined she was not fit to be behind the wheel.

We're told the 26-year-old actress was busted at 3 AM ... she's still behind bars.

According to her booking sheet, Bynes is 5'7" and 125 lbs. Her bail has been set at $5,000.

Bynes has been frequenting the Hollywood party scene recently, hitting up several clubs over the last few weeks.

Just last month -- on St. Patrick's Day -- TMZ cameras saw Bynes leaving Greystone Manor, and thought she appeared to be extremely intoxicated. One of our cameramen even warned the valet not to let Amanda drive, but she got into the driver's seat anyway ... and took off (below).

A week before that, Amanda bolted from a cop while he was writing her a ticket. She was pulled over for talking on a cell phone, and while the cop was writing her up ... she drove away.

Amanda later swung by the police station and signed the ticket. So far, she hasn't faced additional charges stemming from that incident.

We just got Amanda's mug shot ... it's to DYE for!

Amanda Bynes made a HUGE mistake during a traffic stop in L.A. yesterday ... she blew off the cop while he was writing the ticket and drove away from the scene ... TMZ has learned.

Bynes was originally pulled over for talking on a cell phone while driving yesterday afternoon. The officer approached the car and collected all of Amanda's information so he could write up the citation.

But Amanda didn't feel like waiting around ... and hit the gas before the cop could hand over the ticket for the actress to sign.

We're told the cop decided NOT to pursue Bynes because he didn't feel she was dangerous ... and besides, he already had all of her information.

Later that day, Bynes rolled by the police station and signed the ticket ... but we're told she's not off the hook for leaving the scene early.

Authorities are currently investigating the situation ... and will decide if Bynes should face further charges for her untimely exit.

Turns out, when Amanda announced her sudden departure from acting last week -- she broke the hearts of her biggest fans ... a Class AA baseball team in Maryland called the Bowie Baysox.

So, to honor their retired hero, the team put together a "Farewell Amanda" blowout ... which included Bynes-themed games -- like "Big Fat Liar" trivia and a "She's the Man" cross-dressing challenge.

UPDATE: 10:25 PM ET: Bynes' lawyer, David Feldman, said it was a minor fender bender where cars were traveling 3 - 5 mph -- bumper were touched and that's it. Feldman went on to say there were no injuries or damage to the cars. And Feldman says the plaintiff filed the lawsuit one day before she would have been barred forever from suing and not once did she ever notify Bynes that she suffered any injuries.

Some celebrities have a problem with drinking and driving. Amanda Bynes just has a problem with driving.

Bynes has been involved in two car accidents in the last two years, and now she's being sued over one of them.

It was a multiple car collision at a very busy intersection in Bev Hills. We're told it was a chain rear-ender with four cars involved.

Bynes is being sued for hospital bills and damages. The plaintiff, Shari Landon, is suing two other drivers, along with Hertz.

Amanda Bynes was in another minor car accident yesterday afternoon in Los Angeles.

Cops tell TMZ Bynes was making a left turn at the intersection of Oakwood and Crescent Heights around 2 pm yesterday when she smashed into another car. The driver of the other car sustained minor injuries, but no charges were filed.

Police quickly responded to the scene, but no injuries were reported. The crash brought rush hour traffic to a grinding halt on one of the busiest streets in Beverly Hills.

Witnesses claim Bynes kept her composure after the crash and calmly called for help on her cell. Shortly after, the actress was spotted removing items from her 2005 BMW X5 while she waited for a tow truck to arrive.

No police report was filed. Law enforcement sources tell us the officers only helped facilitate the exchange of information between Bynes and the other driver.