A truck driver in England decided to play the role of law enforcer when he prevented a car from driving on the shoulder of a highway. Turns out the driver was blocking the police.
You can see the truck repeatedly swerve into the shoulder to prevent the car from getting through, until the cop flashes his siren. The driver then gets out of the way.
What the driver probably thought was an act of justice turned out to be an embarrassing mistake that earned him a nice little fine.