it'll (slightly) scare folks who don't think too deeply about it or don't have lots of legal knowledge/experience, but not the folks most likely to use them for

it'll (slightly) scare folks who don't think too deeply about it or don't have lots of legal knowledge/experience, but not the folks most likely to use them for illicit tracking. all it does is alert them to do their tracking more surreptitiously and perhaps to cook up an alibi beforehand.