The parking or standing of any motor vehicle in a parking space, at which space the parking meter displays the sign or signal indicating illegal parking, shall constitute a prima facie presumption that the vehicle has been parked or allowed to stand in such space for a period longer than permitted by this chapter. (Ord. 2670 § 1, 1996; Ord. 973 § 1, 1966; prior code § 19.17.10(A)).