Suppose you are heading home after a nice evening out with friends at your favorite local restaurant in California. You're traveling along, listening to some music and feeling happy and rejuvenated after a fun time. The next thing you know, you've caught a glimpse of flashing red and blue lights in your rear-view mirror. An entire evening's worth of fun comes to a screeching halt as you realize police are pulling you over.
As detailed in SF Weekly, you can be arrested "for a marijuana DUI in California if law enforcement makes the determination that you are high while driving and that [it's] impairing your driving ability."
A judge recently dismissed a case involving a woman arrested in New York for DUI with a .3 blood alcohol level.