One time me and three friends were driving to the beach, and we accidently passed it. So we had to exit, turn around, and get back onto the freeway. Well the freeway going in the direction we needed had a stop where everyone needs to slow down and the cops just peak in, then wave you by.
It probably looked funny to the people around us that were continually around us as we were putting in eyedrops,spraying febreeze and taking the keys out to lock our stash in a middle compartment. The cops just looked in the drivers window at all of us and waved us by like everyone else, but it was pretty scary nonetheless.