It is unlawful for any person to remain standing, lying or sitting on the street or highway in such a manner as to obstruct the free passage of vehicular or pedestrian traffic thereon, or wilfully to remain standing, lying or sitting thereon in such manner for more than one minute after being required by any police officer to clear a free passage for vehicular or pedestrian traffic or wilfully to remain on such street or highways or any property having access to such street or highways. (Prior code § 15-2-17)