My thoughts (rare occasion...thinking)
He cut the corner, realistically ...so what, it happens and we do it as cyclists.
Was t worth getting into dialogue, no, but once in, hard to drag out.
Re your "see ya" comment, uncalled for and slightly confrontational, but surprised he would have heard it considering you said rather than shouted it and e was driving away at he time.
His subsequent chase, pull up in front of you and confrontation was well out of order and ge needs to be taken to task by the police.
Your responses at that point were quite measured and I hope/hope you ad realised you were in a dangerous situation.
All-in-all an avoidable but very threatening situation.
You seem to be a bit of a target Matthew_T