This division is adopted pursuant to the provisions of section 22507 of the California Vehicle Code. Its purpose is to enhance the quality of life of those persons residing in any area of the city which is zoned for and predominantly devoted to residential uses, and which contains streets congested with vehicles parked by persons who do not reside in such area, by providing a means to limit the parking of vehicles along the streets within such area only to those persons who do reside in the area, as well as a resident’s guest. However, this division shall not be construed to allow parking within a preferential parking area in violation of any other provision of this title. (Ord. No. 1633, § 1 (part).)