All persons operating a motor vehicle upon school property shall drive within a careful and prudent speed not greater than or less than a speed which is reasonable and proper, and in no event shall such speed exceed 25 miles per hour on all roadways and streets maintained by the school. It shall be prima facie unlawful for any person to violate or exceed any of the limitations in this section. (Comp. Ords. 1987, § 20.553(C), (D)) Secs. 66-144—66-160. - Reserved.