Your right, the 4th amendment DOES NOT apply. You should know that your cell phone is trackable. Therefor you should have no expectation of privacy and that is one of the tests for warrantless law enforcement activity. If you don’t want to be tracked, get a “burner” phone.
A cell phone is nothing but a radio that sends out signals. The feds can track the signals. If you’re carrying a device that broadcasts your location, how can you claim that someone tracking it is unconstitutional.
Know your rights and don’t do stupid stuff. If you don’t want to be tracked, drop the cell phone in the nearest creek.