In cases such as this, the correct response is to drag them out of their vehicle and onto the ground, ask them very forcefully to explain to you why you just dragged them out of their vehicle, if they are unable to give a correct, blubbering response then explain their wrongdoing in explicit detail and without prejudice. Then, help up the now emotionally exhausted and vulnerable vehicle operator, give them a hug and help them back into their vehicle and send them on their way.
In cases such as this, the correct response is to drag them out of their vehicle and onto the ground, ask them very forcefully to explain to you why you just dragged them out of their vehicle, if they are unable to give a correct, blubbering response then explain their wrongdoing in explicit detail and without prejudice. Then, help up the now emotionally exhausted and vulnerable vehicle operator, give them a hug and help them back into their vehicle and send them on their way.
Oh, and take a shit on their bonnet.