Law enforcement sources tell TMZ, Bynes was pulled over for driving without her headlights on. We're told she was given a verbal warning and sent on her way.
It's unclear if officers ran the actress' license -- because if they did, they might have noticed it was reportedly SUSPENDED last week after the actress was slapped with two misdemeanor hit-and-run charges. She also refused to take a breathalyzer after being busted for DUI, and that triggers an automatic 1-year license suspension.
It's unclear if the license has since been reinstated -- but with such a short time frame, it's VERY unlikely.