It shall be unlawful for any real property owner, real estate broker, real estate salesman or agent in selling property situated in the county, knowingly to misrepresent or knowingly to mislead the purchaser of such real property, as to the location of the boundary lines, the corners of such property and the location of contiguous land dedicated to, under easement to or owned by any public agency for the purpose of parks, roads, streets, alleys, sidewalks, crosswalks, storm drainage or other public use. (1968 L.M.C., Ex. Sess., ch. 1, § 1.)