When the car of a motorist without valid claim check is not listed on the inventory, unless there is evidence to the contrary, the car shall be assumed to have been on the lot one day or less, and the full 1-day parking fee shall be collected after the motorist has made out an identification slip, called an "ID" slip. An ID slip shall contain the date, name, address, phone number, driver's license number, and signature as shown on his or her driver's license and the license number and description of the car.

If the motorist refuses to cooperate in carrying out the operating procedure outlined above or if any motorist drives out of a lot without stopping and paying the proper parking fee, or if there is indication of auto theft or fraud against city or the operator, operator's personnel shall immediately call police and shall assist the police in every practical manner in properly handling the case.