The vice president for plant operations or a designee may make and erect signs, barricades, and other structures and paint marks and other directions upon the streets, entrances, exits, and roadways for the regulation of traffic and parking upon the various public lands devoted to, operated by, or maintained by the college. Drivers or vehicles shall observe and obey all the signs, barricades, structures, markings, and directions given them by the campus security officer in the control and regulation of traffic and parking.