Illinois Statutes Chapter 625. Vehicles § 5/11-505. Squealing or screeching

(a) an authorized emergency vehicle, when responding to an emergency call or when in the pursuit of an actual or suspected violator; nor

(b) the emergency operation of a motor vehicle when avoiding imminent danger; nor

(c) any raceway, racing facility or other public event, not part of a highway, sanctioned by the appropriate governmental authority.