> More specifically, the screenshot showed a location in a particular neighborhood—just a couple of blocks from where the target was.
What gets me is that the writing on wall appears to be that this data did not come from an app on the phone but from the phone company themselves, data collection that is required by the government.
"A couple of blocks from where the target was" implies to me that it was locating the nearest tower. Lat/Long coordinates of the phone within 300 meters is required by the FCC to be received by the telephone companies for Phase II of Enhanced 911. They might be snapping the lat/long to the tower, and then calling that de-identified enough to sell.
If a bounty hunter can get your snapped lat/long on demand because of E911 requirements, you better believe a TLA can as well--and probably unsnapped.