9-4-6: APPROACH OF AUTHORIZED EMERGENCY VEHICLES:
   A.   Upon the immediate approach of an authorized emergency vehicle equipped with at least one lighted lamp exhibiting a red light visible under normal atmospheric conditions from a distance of five hundred feet (500') to the front of such vehicle other than a police vehicle when operated as an authorized emergency vehicle and when the driver is giving audible signal by siren, exhaust whistle or bell:
The driver of every other vehicle shall yield the right of way and shall immediately drive to a position parallel to, and as close as possible to, the right hand edge or curve of the roadway clear of any intersection and shall stop and remain in such position until the authorized emergency vehicle has passed, except when otherwise directed by a police officer.
   B.   This section shall not operate to relieve the driver of any authorized emergency vehicle from the duty to drive with due regard for the safety of all persons using the highway or street. (1960 Code, Sec. 7-906)