there's a slight issue this year with half of the members in my party being of age to drink, and half of them are not. would this present a problem for bringing in alcohol into the campgrounds for those of us who drink? do they even check ids when they search the car?
you probably won't have a problem, but bear in mind, the police will randomly choose vehicles for deep searches. if you have someone who is > 21 just have that person say that it's all his/hers and it shouldn't be an issue.