The US supreme court ruled that putting a GPS device on a car constituted a search [1]. People at the time were making the same argument you were. [1] https://

The US supreme court ruled that putting a GPS device on a car constituted a search [1]. People at the time were making the same argument you were. [1] https://en.wikipedia.org/wiki/United_States_v._Jones https://en.wikipedia.org/wiki/United_States_v._Jones