SoHo 'Karen' Miya Ponsetto Threw Tantrum During DUI Arrest

Miya Ponsetto, the SoHo Karen who falsely accused a black teen of stealing her iPhone and then attacked him, went wild on cops when she was arrested last year for DUI.

As we reported, Mia and her mom, Nicole, were charged with another crime last year which involved being drunk in public -- more on that in a minute. But, THE DAY AFTER Miya was charged, cops spotted her in Malibu driving erratically and pulled her over.

Law enforcement sources tell TMZ ... Miya copped to being in an altered state, saying she had taken a Xanax and had some wine. Cops asked her to step out of her Range Rover, and that's when the craziness began.

We're told when she got out, cops said they wanted to perform a field sobriety test, which she flat out refused and cops say she was downright belligerent. Our sources say cops tried slapping handcuffs on her, but she resisted and they then took her to the ground.

At that point, cops say Miya threw a tantrum, kicking the ground, thrashing her body and even knocking her head on the pavement.

As we reported, she was taken to jail and booked for DUI. She pled no contest and received 3 years probation, 30 hours of community service and she's required to take a 9-month alcohol/drug counseling program.

As you know, Miya was at a fancy NYC hotel last month when she realized she didn't have her iPhone and immediately zeroed in on the 14-year-old son of Grammy-winning musician, Keyon Harold, who was holding an iPhone, accusing the child of stealing her phone. She attacked Keyon Jr. and New York cops now want to talk to her.

Turns out she seems to have issues with hotels, because early last year she and her mom were at the Peninsula hotel in Bev Hills where employees asked them in vain to leave after they appeared inebriated. The cops came, Miya's mom, Nicole, allegedly pushed and kicked an officer. The mom was arrested for battery on an officer and being drunk in public. Miya was arrested for being drunk in public as well. They pled not guilty and have a hearing next month.