Google Maps labelled the island of Calero, just off the Mosquito Coast, as being part of Nicaragua, whereas it's actually claimed by Costa Rica, the dispute having trundled on for about two hundred years. On this evidence, Nicaragua gently invaded Calero, and is citing Google Maps as its authority - its sole authority - for doing so.
There was another case recently where someone was allegedly caught on camera stealing a caravan, by Google Street View. (They couldn't identify the thief, because his numberplate had been pixillated.)
In a few years, will we be hearing, as a defence in court: 'Well, happens all the time on Grand Theft Auto, so it must be all right'?
I could've got away with all sorts of stuff, couldn't I? 'Weren't me, guv, it was Scaramouche done it.'