its not really been faked as its been done on ford premises by a ford tech its just theyre pissed off because they didnt get their cut.
unfortunately on a legal basis they probably wont see it that way.
whether that bears any point in the fault its developed or not i dont know and since everyone puts more effort into trying to pass the buck than honouring their side of a deal theyll be looking to pass that buck on to you.
edit...i just noticed the bit about dropping your mate in it....what can the outcome be? if you told them to go fuck themselves what couyld they do ? or you could go down the route of demanding they did it, they stamped the book (as you obviously dont have a stamp)and the faults at their end with their dodgy record keeping?