Each application for a park permit shall be accompanied by a written plan for parking automobiles. The plan shall designate the number of automobiles expected and the area where they are to be parked. If private property is to be utilized for parking, the plan shall be accompanied by executed documents authorizing its use. The plan shall provide for at least one parking attendant to be on duty at all times during the assembly for each five hundred (500) persons reasonably expected to attend, as estimated by the city manager. If a civic organization such as a Boy Scout troop is to provide parking attendants, the plan shall be accompanied by an executed agreement for such service. Each parking attendant shall wear a distinctive uniform or identifying marking which shall be described in the parking plan. (Prior code § 1.616)