Except for sheriff or police vehicles and certain vehicles owned by their employees assigned to work other than day shift, and except for reserved parking spaces assigned pursuant to the provisions of §§ 261.5-4 and 261.5-6, the assignment and allocation of parking spaces shall be effective only from 7:00 a.m. to 7:00 p.m. Monday through Friday, holidays excepted; provided, however, that any vehicle which is properly parked pursuant to such assignment and allocation at the hour of 7:00 p.m. may remain so parked until its operator completes his/her business and the vehicle is removed by its operator. (Ord. 1677, § 2, 2/26/1985; Ord. 1880, § 2, 11/28/1989)