You know what people like that really hate? Exposure. Dash cams and police reports expose them even more :) If they do it again and if you didn't do so already, lock your doors and slow down in order to increase the thinking distance in the event of a collision. And a rear-fitted dash cam is most welcome on here, trust me. It also makes it much harder for them to excuse their behaviour. Don't let it put you off enjoying your journey, all the best :)
This is also the reason why cyclist need to avoid the so-called "door-zone". Stay at LEAST a door's length away. Any idiot drivers have a problem with that? Complain to the police, it could well be the wake-up call they need.
Why the 2 minute lead up? Boring!