No mobile home trailer, or motorized home, shall be parked on any street of the Borough in violation of any parking ordinance of the Borough or, in any case, for a period of more than four hours. It may be parked in a public parking lot between the hours of 8:00 a.m. to 12:00 midnight of the same day. If parked in the open in any residential district, it may be parked outside of a garage provided it is parked to the rear of the setback line of the premises, but in conformity with all zone requirements for side yards and rear yards relating to accessory buildings in the zone where parked.