Geo-fencing might not be terribly accurate but it gets you close. If combined with Bluetooth beacons (any chance the hospital is willing to install one for a fe

Geo-fencing might not be terribly accurate but it gets you close. If combined with Bluetooth beacons (any chance the hospital is willing to install one for a fee?) or WiFi network recognition (I see the ER's WiFi network -- I am almost certainly inside the hospital) you can get the accuracy down to a few feet which is more than good enough for advertising company to sell that phone's position to the law firms.