What marking procedure must be followed for vehicles suspected of violating the 72-hour parking ordinance?

The correct approach for marking vehicles suspected of violating the 72-hour parking ordinance involves marking tires and pavement with chalk. This method is effective because it allows law enforcement or parking enforcement officers to visibly confirm whether a vehicle has been parked for an extended duration. By marking the tire with chalk, they can return later to see if the mark remains, thus determining if the vehicle has indeed been stationary for longer than the allowed period.

This procedure serves as a clear and temporary indication on the vehicle and pavement, allowing for easy tracking and enforcement of the ordinance. Other options, such as using cones or issuing warning tickets, do not provide the same level of clarity or effectiveness in monitoring the violation over time. Cones may not be practical or effective for individual vehicles, and warning tickets do not enforce the ordinance directly but rather serve as a notification that does not track parking duration.