[Ch. 19 §19.1202]
A. 
Every person parking a motor vehicle on any street, alley, public property or public right-of-way shall remove and take with him/her the ignition key thereof. Any Police Officer finding such key shall remove said key and cause it be forthwith deposited at Police headquarters for safekeeping in a conspicuous place in or upon such vehicle.
B. 
Every person having a control or charge of any standing or parked vehicle shall, before leaving it unattended upon any street or public right-of-way, set the brakes and stop the motor thereof, and if it is left upon other than a substantially level street, the wheels thereof shall be turned to the curb or side of such street or roadway.