Digging a little further, when the rest of us are driving and seeing cards with these drunk driver license plates, we’d be more cautious around them. Call it properly targeted defensive driving. Also, law enforcement would keep a closer eye on them, especially during the hours when it’s more likely people are out partying and driving home from bars. They’d be able to focus more effectively on people who need to be monitored, doing spot checks of those cars that are on the road at 2 a.m. and being more likely to look for any erratic driving at other
