Right, lets get one thing on the record. In England and Wales, if you are filming on a bike cam in a public place, the footage can be used as evidence in court. If you get a policeman tell you otherwise, they are cutting corners. I can't quote for certain for Scotland, but can't imagine it being too much different.
People hint that hes having problems with the police? Anyone know exactly what problems? If this was my case I don't think anything could be so cut and dry. Two independent witnesses at least (by my count of people coming forward), and decent quality footage.
I can anticipate him having to wait some time for the insurance companies to pay out for his bike whilst they argue whether it was the blokes fault for causing the accident, or the womans fault for running it over. Personally I'd go for the woman, but this would be civily argued between the insurance companies and likely to drag on.
Prosecution-wise, I'd be looking for advice from the injured party about what he wanted, but I'd suggest driver-improvement scheme for the bloke if eligible and prosecution for the woman: not because her attitude was so bad (though it was) but because I see her error as much more serious, as she failed to notice a cyclist crash, scream, skid across the floor in front of her, and promptly drove over him!