A DUI driver has been arrested after a solo-car crash in Petaluma. Last night, a car headed westbound on Adobe Creek Drive crashed into a traffic sign, onto the median and into a large rock just east of Ely Boulevard South. The driver, 24-year-old Nicole Ortiz, was the only person in the car, and she was taken to the hospital for treatment. Officers found an open alcoholic beverage in the center console of the car and learned Ortiz’ driver license was suspended from a prior DUI. Ortiz was arrested for driving while intoxicated.