I think deplorable is a much under-used word in English and fits the case perfectly.
The trouble with 'getting' out of trouble with a berk like him is that you will probably end up at a set of lights where he will 'get you'.
There was a case in Newbury a few months ago where a young girl on a small learner bike filtered to the front of the queue at the Robin Hood roundabout. This has three wide lanes at the stop lines with fully timed lights so the locals know they won't change on them as they filter to the front. I always filtered to the front if the crossing traffic was still flowing.
An 'old' guy in a car at the front of the queue simply drove into her on full lock (while the lights were still red), knocked her off the bike, got out of his car and thumped her several times before getting back in his car and driving off.
Naturally, none of the other drivers around her saw what happened and even the million cameras on the junction didn't get his details.
Having read this report, it seems the local plod were not trying hard enough...