(b) The driver of an authorized emergency vehicle may: 1. Stop, stand or park irrespective of the provisions of this title; 2. Proceed past a steady red signal, a flashing red signal or a stop sign, but only after slowing down as may be necessary for safe operation; 3. Exceed the maximum speed limits so long as he does not endanger life or property; 4. Disregard regulations governing directions of movement or turning in specified directions.

(c) Except for an authorized emergency vehicle operated as a police vehicle or bicycle, the exemptions herein granted to an authorized emergency vehicle shall apply only when audible signals are sounded from any said vehicle while in motion by bell, horn, siren, electronic device or exhaust whistle as may be reasonably necessary, and when the vehicle is equipped with at least one lighted lamp so that from any direction, under normal atmospheric conditions from a distance of five hundred feet from such vehicle, at least one red light will be displayed and visible.

(d) An authorized emergency vehicle operated as a police, sheriff or deputy sheriff vehicle may exceed the maximum speed limits for the purpose of calibrating such vehicles' speedometer. Notwithstanding any other law, rule or regulation to the contrary, a police, sheriff or deputy sheriff bicycle operated as an authorized emergency vehicle shall not be prohibited from using any sidewalk, highway, street or roadway during an emergency operation.

(e) The foregoing provisions shall not relieve the driver of an authorized emergency vehicle from the duty to drive with due regard for the safety of all persons, nor shall such provisions protect the driver from the consequences of his reckless disregard for the safety of others.

(f) Notwithstanding any other law, rule or regulation to the contrary, an ambulance operated in the course of an emergency shall not be prohibited from using any highway, street or roadway; provided, however, that an authority having jurisdiction over any such highway, street or roadway may specifically prohibit travel thereon by ambulances if such authority shall deem such travel to be extremely hazardous and would endanger patients being transported thereby.