She was pulled over for speeding and failed the field test. She was arrested when she refused to do the Breathalyzer, but at the Baker station, testing verified that Ronson was way over the legal alcohol limit.
10:30 PM is a little early for a nightlife impresario to be DUI-ing, but obviously Sam Ronson doesn’t play by the rules.
[I Need My Fix, Dipped In Cream]