ignore the error and stay calm
Where there are a number of side roads, be alert. Be especially careful if there are a lot of parked vehicles because they can make it more difficult for drivers emerging to see you. Try to be tolerant if a vehicle does emerge and you have to brake quickly. Don’t react aggressively.
B flash your lights to show your annoyance
C sound your horn to show your annoyance
D overtake as soon as possible