Accident advice for a friend

[lewisdmz]

Not in his car, but on a bicycle. I was following behind.

Basically there were parked cars on our left, a bus went to overtake but was forced to cut back in mid manoeuvre due to vehicles travelling in the other direction (completely misjudged it). This forced him into the parked cars so much that his handlebars were scrapping down the bus and one parked car ( unfortunately the car wing mirror was smashed clean off).

The bus carried on driving but luckily there was a bus stop literally 20 metres up the road so we managed to catch up, gave the bus driver an earful and got the reg of the bus etc, bus driver was aware he almost killed my mate but presumably not of the damage caused to the parked car.

Obviously he wants the owner of the parked car to get the wing mirror sorted out by the bus company but he's worried if he reports it to the police some blame might come to him?

Technically the bus driver fled the scene of an accident and also denied to give details which are both illegal.

Any suggestions?