Pedestrians shall not loiter on any bridge or in any portion of the right-of-way of any highway where loitering has been determined by the Commissioner of Highways or the local governing body of any county, city, or town to present a public safety hazard and on which the Commissioner of Highways or the governing body of any county, city, or town has posted signs prohibiting such action. Local jurisdictions shall obtain concurrence from the Commissioner of Highways on the placements of signs on the right-of-way of any bridge or highway under the jurisdiction and control of the Commissioner of Highways or the Virginia Department of Transportation; however, the local jurisdiction shall be responsible for all costs of the production, installation, and maintenance of the signs. Any person violating the provisions of this section shall be guilty of a traffic infraction.