Unfortunately it isn't even that easy. The Google car that is used to take images of the StreetView also collected SSID's (and infamously got in trouble for sn

Unfortunately it isn't even that easy. The Google car that is used to take images of the StreetView also collected SSID's (and infamously got in trouble for sniffing packets too). So GPS location + Multiple SSIDs = triangulated location for mobile devices. Google is able to use each mobile devices' location, and it's GPS co-ordinates, and the location of your neighbours SSID, all that raw data makes for a very accurate location detection even without YOU ever using Google's services. You might have stood a chance if you lived in a Faraday cage, but the only thing that will stop this behemoth is legislation and politicians with morals.