4. Only a firefighter in the territory of the regional county municipality of Les Collines-de-l’Outaouais, Papineau, La Vallée-de-la-Gatineau, Pontiac, Bécancour, Lotbinière, L’Érable, Arthabaska or Nicolet-Yamaska, or in the Ville de Gatineau, who is responding to an emergency call from a fire safety service covered by an agreement entered into in accordance with section 3 may activate the flashing green light of the road vehicle he or she is driving. The firefighter is authorized, where the circumstances so require and where the light is activated, to drive on the shoulder and to stop the vehicle in any place. The firefighter must act in a manner that does not endanger human life or safety.