I don’t think it would be a good idea to park your car in front of a bar for more than a couple of hours. If you get scanned driving after drinking and leaving the bar you would be busted even if you were driving OK.
It’s always an occupational hazard for musicians. Many is the time I’ve been stopped driving home after a gig. And of course you always reek of beer and cigarette smoke which raises their suspicions even more.