(A) (1) 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 key from the ignition, effectively setting the parking brake, and, when the motor vehicle is standing upon any grade, turning the front wheels to the curb or side of the highway.
(2) The requirements of this section relating to the stopping of the engine, locking of the ignition, and removing the key from the ignition of a motor vehicle do not apply to any of the following:
(a) A motor vehicle that is parked on residential property;
(b) A motor vehicle that is locked, regardless of where it is parked;
(c) An emergency vehicle;
(d) A public safety vehicle.
(B) Except as otherwise provided in this division, whoever violates this section is guilty of a minor misdemeanor. If, within 1 year of the offense, the offender previously has been convicted of or pleaded guilty to 1 predicate motor vehicle or traffic offense, whoever violates this section is guilty of a misdemeanor of the fourth degree. If, within 1 year of the offense, the offender previously has been convicted of 2 or more predicate motor vehicle or traffic offenses, whoever violates this section is guilty of a misdemeanor of the third degree.
(R.C. § 4511.661) (1974 Code, § 74.06)