Even if you could fingerprint the location accurately, how do you know I'm there now, vs. capturing all of the information when I was there and replaying them l

Even if you could fingerprint the location accurately, how do you know I'm there now, vs. capturing all of the information when I was there and replaying them later? A much easier problem than "are you really where you say you are?" is "are you likely to be sending me fake locations?", which is hard to do with a single location update, but if the user is moving rapidly, or in geographically distant locations across multiple updates it's much easier to catch.