tbh, Uber has a point
There's no requirement that law enforcement be given carte blanche access to everything. They've fucked up. Kindof a lot. Kill the wrong people, kick in the wrong door... lots of innocents get hurt because they think they're right when they aren't.
And it's legal to track their whereabouts and activities with police scanner radios; Triangulating these isn't exactly hard. Same with received RF signals -- they say they can spy on our wifis, and so encryption happened. We can spy on their RF signals too... it's the same thing. Police can't do anything a citizen can't do without a warrant or legal justification -- that's how it is in the United States, at least. And there's no requirement we offer them service (or not) outside of a lawful request -- ie, a warrant.
So Uber's right -- they're dicks, but they're right!