Ashley Mattingly Arrested For Drunken Golf Cart Joyride

Former Playmate Ashley Mattingly was arrested for suspicion of DUI after allegedly plowing her golf cart into 4 parked cars, but she's not willing to accept blame.

According to a witness, Mattingly wrecked last weekend while tooling around her Laguna Beach neighborhood. Cops tell us the witness snapped pics, which they used to trace the vehicle back to Ashley. When they got to her house, we're told she appeared to be under the influence, and arrested her.

Ashley has a different story though -- she tells us someone stole her golf cart and went on a joyride. She adds she wouldn't have answered the door if she had anything to hide from cops.

As for the DUI -- Ashley admits she does mix extra strong drinks at home sometimes ... which doesn't seem like the greatest defense. That giant gash on her face might also be tough to explain away.