Dashcam footage, recorded by an emergency ambulance, shows the moment when the driver of a black Mercedes decided to follow the emergency vehicle through traffic.
In the footage, the emergency ambulance can be seen to make good progress through traffic on a busy road.
Thirty-two seconds into the video, a vehicle can be seen accelerating up towards the rear of the emergency ambulance before it proceeds to follow the blue-light vehicle through the traffic.
At one point, the blue-light driver exits his vehicle to speak to the car driver that is following him.
Watch what happens next in the video below:
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