§ 74.03 OBEDIENCE TO TRAFFIC DIRECTIONS.
   It shall be unlawful for any person operating a bicycle to fail or refuse to comply with any order, signal, or direction of a police officer, or to disobey the instructions of any official traffic sign, signal, or other traffic-control device.
(ILCS Ch. 625, Act 5 § 11-1502) Penalty, see § 70.99