What is the correct and legal course of action when a vehicle breaks down on an Angolan motorway (auto-estrada)?

1. Switch on the hazard warning lights, move the vehicle onto the shoulder or a place specially intended for stopping if possible, wear the reflective vest, and place the warning triangle at least 30 metres behind the vehicle visible from 100 metres
2. Reverse back along the hard shoulder to the previous exit
3. Stop in the middle of the left overtaking lane and wait inside the vehicle
4. Make a U-turn across the central separator to drive back against traffic