Interesting. If the Droid had pulled that undertake on a FNRttC, he'd have got a bit more than the Eyebrow of Disapproval. And I hate Airzounds. And zealotry isnt my thing. Nor is paternalism. But... I cant help liking him. I'm impressed with the way he put the driver on the spot, and unlike the folk who see aggression in his demeanour, I think he comes across as a good-humoured sort of cove. He's created a character, and perhaps become a little bit too seduced by its superhero tendencies, but as fictions go, the Droid is a good one.
The driving was dangerous and abysmal. Boris might be factually correct to get all Tom Jones about it, but doesn't seem to have any answers about how we get to a situation where it is unusual for motorists deliberately to endanger vulnerable road users whenever the fancy takes them. I reckon that a talking to by the Droid might just make them think before doing it again. I've chased drivers down for close passes before (without the cameras, the undertaking, the horn and the pseudo-official demeanour), and my experience is that it is worth doing. As long as you resist the urge to shout and swear at them. Sometimes drivers are apologetic, sometimes defensive, and sometimes furious, but what they almost always are, to my immense gratification, is afraid. Of little ol' me! Your mum was right about bullies - they are always cowards who can only do what they do because they feel more powerful - anything that disrupts that power dynamic is getting somewhere.