I gave my girlfriend's 2 guy friends a ride to the bars Saturday night in my back seats (My girlfriend and I don't know them that well and I was designated driver- Id only had 1.5 drinks that night and theyd had multiple including multiple shots). Anyway, it turns out theyd left opened and not quite finished beer cans and beer bottles in my back seat on the floor. I noticed during transport one of them drinking an open bottle too. Anyway, It kind of irritated me to have to pour and throw out a beer bottle and beer can mid week when I found the stuff clearing out my car a couple days later.
Question - besides this being a little irritating to me to have to clean out of my car (I will probably uber into the city with my girlfriend next time so that I can enjoy myself more not worrying about staying sober and so that I won't be talked/tempted into give them rides and ruining my sports car), what kinds of trouble with police could they have gotten me into in the event we were pulled over by police? Or if I were pulled over a few days later driving solo not knowing the opened containers were in my back seats?