No person driving, or in control of, or in charge of, a motor vehicle shall permit it to stand on any highway unattended when upon any grade exceeding three percent within any business or residence district without blocking the wheels of the vehicle by turning them against the curb or by other means.
(Ord. 98 § 1 (part), 1993: Ord. 3 § 1 (part), 1991: prior code § 12.11.009)