Nothing contained in this article shall be construed to prohibit public service vehicles from using or occupying public parking spaces as provided in this article, without charge, when the operators of such vehicles are actually engaged on official business and service of the municipality, county, state or federal agency which owns such vehicle, provided that, such vehicles shall not remain parked beyond the posted time limit or parking meter duration of any such spaces unless such vehicle and operator is involved in the service and repair to the street, highway or public parking facility upon which such spaces are located, and provided further, that the county executive or his designee may prohibit such parking without charge in certain parking facilities when the public demand for such spaces exceeds the vehicle capacity of the facility.
Except as herein provided and in cases involving an emergency, such vehicles are subject to all provisions and regulations of this chapter and the operator of said vehicle shall be subject to the fines and penalties provided in this chapter. (1978 L.M.C., ch. 7, § 2.)