The parking, storage or maintenance of any motor vehicle, regardless of its type, style, design, configuration, class, purpose or official registration, in or upon any residentially zoned lot or lots, which vehicle exceeds a gross vehicle weight of 6,000 pounds or which has a total of more than two axles or more than four wheels or which exceeds a maximum gross width of seven feet six inches, a maximum gross length of 20 feet or a maximum gross height of seven feet. For purposes of this subsection, all boats, sailboats, trailers, campers, pop-up trailers, pop-up campers and similar devices, whether or not self-propelled or designed to be towed, shall constitute and be deemed to be motor vehicles subject to the limitations herein.