No person driving or in charge of a motor vehicle shall permit it to stand unattended without first stopping the engine, locking the ignition, removing the ignition key and effectively setting the brake and, when standing upon any grade, turning the front wheels to the curb or side of the highway.

SOURCE: GC § 23133, enacted by P.L. 1-088 (Nov. 29, 1952), as repealed and reenacted by P.L. 6-055 (Feb. 13, 1962).