Either of the following specified acts shall constitute an unauthorized commercial use of land in any residential district and is a violation of this title:

    A.    The parking in any residential district or upon any street adjacent thereto for a period of time greater than two hours in any twenty-four-hour period of any commercial vehicle, commercial truck and/or commercial trailer having a manufacturer’ s gross vehicle weight rating as defined in the State Vehicle Code, greater than ten thousand (10,000) pounds; or

    B.    Parking at one time in any residential district or upon any street adjacent thereto, of two or more commercial vehicles, commercial trucks and/or commercial trailers by any person having possession or control thereof. (Prior gen. code § 8-60.16)