Discusses on-street and off-street legal issues that have arisen since the early 1950s, including enforcement of parking regulations by both criminal remedies and civil penalties; adoption, by ordinance, of evidentiary rules to be used in enforcement actions; towing-when it is permitted and under what procedures; and the use of towing and criminal remedies in publicly owned off-street lots. Also questions whether earlier cases should be accorded the full weight of precedent.