No person shall mark with ink, paint, chalk or other substance, or post handbills on, or in any other manner deface or injure, any school building or structure used or usable for school purposes within the corporate limits of the city, or mark, deface or injure fences, trees, laws or fixtures appurtenant to or located on the site of such buildings, or post handbills on such fences, trees or fixtures, or place a sign anywhere on any such site.
(1992 Code, § 960.00) Penalty, see § 130.99