10.20.190 Grades.
   No person driving, in control of or in charge of a motor vehicle shall park or leave standing such vehicle unattended on a highway when upon any grade exceeding 3% (within any business or residence district) without blocking the wheels of the vehicle by turning them against the curb or by other means.
(`78 Code, § 10.20.190.) (Ord. 1506 § 1 (part), 1978.)