No person in charge or control of any property within the city, whether as owner, tenant, occupant, lessee or otherwise, shall allow any partially dismantled, non-operating, wrecked, junked or discarded vehicle to remain on such property longer than 48 hours. No person shall leave any such vehicle on any property within the city for a longer time than 72 hours; except that this subsection shall not apply with regard to a vehicle in an enclosed building or a vehicle on the premises of a business enterprise operated in a lawful place and manner, when necessary to the operation of such business enterprise; or a vehicle in an appropriate storage place or depository maintained in a lawful place and manner by the city.