You really have to be stupid, obnoxious, harassing drunk before getting cut off most places I've been to. I've seen it happen though. I know one guy that is not allowed in 5 different bar/restaurants because he is such a sorry drunk. To get kicked out of Hooters for life is an accomplishment I wouldn't brag about.
The big thing here is do NOT drink too much and drive. Plan on getting a cab. Most states the "legal" limit of alcohol is .08. That ain't much. So if you're planning on several pints, keep the cab companys number in your pocket or have a designated driver.