Toward the end of the era of drive-ins most of the ones near me fell into disrepair and began to attract an unruly crowd of people of questionable character. I remember often hearing reports on the local news of police crackdowns at most of them. The police actually began routine patrols through them. I don't think they really cared if the vans were a rockin. It was more the drug deals, loud and large drunken groups, robberies, assaults, etc. Eventually neighborhoods and the city put a lot of pressure on them and along with declining customers they all went out of business. It was a shame that what my parents and my generations were able enjoy transformed into such a mess at the end.