Outdoor storage and display of accessories, portable signs and outdoor repair work shall be prohibited at all times; premises shall not be used for the sale, rent or display of automobiles, trailers, mobile homes, boats or other vehicles; the sale, rental or display of automobiles, trailers, mobile homes, boats or other vehicles shall be considered a separate and distinct use from that of a filling station and, as such, shall be required to comply with all requirements of this chapter as they relate to such uses.