It is unlawful for any person to install, place, or maintain any advertising on any benches presently installed on or in the public rights-of-way by the City, or which may hereafter be installed; provided, however, that the City is exempt from the provisions of this section, and may place such advertising thereon at the discretion of the Council as they may see fit. (Ord. 1205 § 2, 1969; prior code § 27.1002).