(a) The fire official conducting operations in connection with the extinguishment and control of any fire, explosion or other emergency shall have full power and authority to direct all operations of fire extinguishment or control and to take the necessary precautions to save life, protect property and prevent further injury or damage. In the pursuit of such operation, including the investigation of the cause of such emergency, the fire official may control or prohibit the approach to the scene of such emergency by any vehicle, vessel or thing and all persons not actually employed in the extinguishment of such fire or involved in other actions germane to the emergency.
(b) Any person who obstructs the operations of the fire department in connection with extinguishing any fire, or actions relative to other emergencies, or disobeys any lawful command of the fire official in charge of the emergency, or any part thereof, or any lawful order of a police officer assisting the fire department, shall be in violation of this code and subject to the penalties established by law. (1975 L.M.C., ch. 23, § 1.)