In Smith v. Maryland, 442 U.S. 735 (1979), the Supreme Court held individuals have no "legitimate expectation of privacy" regarding the telephone numbers they dial because they knowingly give that information to telephone companies when they dial a number.[16] Therefore there is no search where officers monitor what phone numbers an individual dials,[17] although the Congress has enacted laws that restrict such monitoring.
wiki
This case makes it clear that reasonable expectation of privacy regarding location is invalidated by carrying a cell phone because location information is given to a third party, the phone company. Thus there can be no reasonable expectation of privacy regarding location.
A strong case is already made in case law (more or less) that if an individual carries a cell phone they have no reasonable expectation of privacy regarding their location because they give their location information to a third party, the phone company. So the feds and the cops are foolish because they had no reason to lie and would have obtained their search warrants legally by telling the whole truth about their use of Stingrays.
But I don't think so, (and I don't want it to be so) because it fails the second part of Justice Harlan's test in Katz v US 389 U.S. 347 (1967).... because society at large would likely deem a persons expectation of privacy to be reasonable regarding their location (especially if out of sight, inside a private home) regardless of carrying a cell phone... because cell phones are ubiquitous, and the existence of cell phones should not invalidate the entire concept of reasonable expectation of privacy. But that's just my opinion, and, again, a strong dissenting case already exists in case law, and is the law of the land.
HOWEVER
the issue here is cops are lying to judges under the direction of federal agents in order to obtain search warrants
That's bad, and judges should rightly be pissed off about it. But no citizens' rights were violated. The police already had the evidence that the individuals they were seeking already committed a crime... the arrest warrant was already obtained, and they're just searching for the suspects, not using this technology to oppress innocent civilians.
The real problem is not that the government is out of control. The government does not move with a single mind... it is aggregate and it is not after anyone but criminals. The real problem is that citizens, including everyone posting here, are uneducated blathering idiots, and do not understand their rights, and do not even realize that they have already forfeited their rights by previous actions, such as owning and carrying a cell phone. We fucked up. We let the steady advancement of technology eat our rights because we were not engaged and did not notice, and now its a bit late to start blaming anyone but ourselves.