They locate you now through the closest tower you are receiving from. I don't see what the big deal is..... unless you are some drug runner, what is the problem?
There have been several instances where a stranded motorist was located by the police because of a cell signal.... a woman in a blizzard in North Dakota comes to mind.
I'll be glad when they get it on my phone. My family or myself may need help someday and not be able to call for it. We don't have anything to hide.