I have overtaken him on many ovccasions
Its importamnt to be far back so he can't see you as he peers out of his mypopic lenses, doing exactly 10.1 mph under whatever he thinks the speed limit is, congratulating himself on how safe he is as he swerves from side to side should anyone dare endanger their lives by attempting to overtake him.
With luck you are past his unsafe (but street legal) kangaroo court car, before he even knows you exist.