(a)   No operator of a vehicle shall drive between the vehicles, persons or animals comprising a funeral or other authorized procession, except when otherwise directed by a police officer. This provision shall not apply to authorized emergency vehicles.
   (b)   Each driver in a funeral procession shall drive as near to the right-hand edge of the roadway as is practical and shall follow the vehicle ahead as close as is practical and safe.
   (c)   No person who is, with his motor vehicle, participating in a funeral procession, when proceeding to a place of burial, shall fail to display illuminated head lamps on such motor vehicle, and such other identification as the Board of Supervisors may prescribe.