I may be no fan of the United States, but one benefit to living in a country this large is it has multiple organizations fighting for civil liberties even if some have not been as effective or focused on the sorts of things I'd be most concerned about.

The EFF (Electronic Frontier Foundation) just achieved a Victory with a ruling at the US supreme court. The ruling says the constitution protects location data. Basically it sounds like geo geofencing warrants are now illegal, although I have not taken a deeper look into the ruling beyond the EFF's summary:

"It confirms that even shorter-term surveillance of location data can constitute a search, because it can still reveal 'a wealth of detail about a person's familial, political, professional, religious, and sexual associations.'"