It shall be unlawful for any person in or upon any roadway or sidewalk, or in or upon any premises in or abutting thereon to demonstrate, sell, or offer for sale goods, wares, or merchandise, or to display any signs, device, information, or exhibition, in consequence of which there is caused or created such a gathering of persons on such sidewalk or roadway as to interfere with pedestrian or vehicle traffic thereon.
(1996 Code, § 11-3.04) Penalty, see § 90.999