If, and only if the horned up mongers could think with the brain in their head. There should be a unsung code/rule, if there is for example 10 parking spaces total, only allow 5 to be full. If there are more than 5 cars parked, keep driving.

Reality is that most people are too dumb, they see one parking space available, and take it. Never realizing the ramifications of the place looking like grand central station.