Must we yield to a driver exiting an adjacent area with flashing beacons and a special audible signal activated?

Explanation

A driver leaving an adjacent area normally gives way to traffic on the road, but when a vehicle with flashing blue and red beacons and a special sound signal approaches, drivers must slow down and give way to let it pass unobstructed. So we must give way to the police car (Rules, points 29 and 38).