The parking and/or storage of mobile homes, recreational vehicles, or other vehicles other than passenger cars upon any lot shall be in accordance with the following provisions:
(a) Mobile Homes: No living quarters shall be maintained or any business conducted within any mobile home .
(b) Recreational Vehicles. No dwelling unit shall be maintained and no business shall be conducted within any recreational vehicle. The wheels or any similar transporting devices of any recreational vehicle shall not be removed except for repairs, nor shall any recreational vehicle be permanently attached to the ground.
(c) Construction Equipment Within Residential Districts: Outdoor storage or parking of backhoes, bulldozers, well rigs, and other similar construction equipment, other than equipment temporarily used for construction upon the site, shall not be permitted within any residential district.
(d) Other Vehicles: The storage or parking of any vehicle having a gross vehicle weight rating greater than 10,000 pounds or an overall vehicle length greater than 21 feet shall not be permitted within any Residential District, excluding vehicles making temporary service or delivery calls.