Emergency vehicles while on an emergency call and while displaying audible and visual signals as required by 75 Pa.C.S. § 4571 (relating to visual and audible signals on emergency vehicles), shall be granted immediate entrance to and exit from any turnpike or highway under the supervision and control of the commission, and no such emergency vehicle shall be required to stop at a toll booth or for any other reason except on order of a member of the Pennsylvania State Police for a legitimate law enforcement function. The commission shall notify all employes of the commission who are assigned duties of toll booths of the provisions of this section.
36 P.S. § 652e.3