Dave, there is a reasonably new scheme called 'community orientated policing', and another called 'restorative justice' which the Plod can use to deal with lesser offences.
I won't bore you with details, (you can google it) but it basically gives Police more discretion upon how they deal with such matters.
It basically involves sitting down both parties with a pC as a mediator, and letting them thrash it out. It can be hugely sucesfull, and sounds like this particular situation could be sorted out with little more than a shake of hands.
Now the sad thing is, community orientated policing cannot be used for traffic matters, but I'm not sure about restorative justice.
What I am suggesting is, ring the PC and suggest you all meet to resolve things informally.
Even if it's an ultimate 'no', the courts would probably look very favourably on you for trying.
Either way, if you are served papers, get representation....
