I love my kids, and I love my job, but I seriously wish I had more time to write. I would have beaten Vilmar to the punch.
This is a vicious violation of our fourth and fifth amendment rights. There's no way I'd a) own a smartphone to begin with, or b) hand it over to be searched without a warrant and probable cause, whether I'd been doing something wrong or not. No, I wouldn't cooperate any more than I'd cooperate if the government decided to place a GPS tracker in my car without a court order.
(And yes, I regularly look under the car for things like this. I may be paranoid, but I absolutely do not trust the government or law enforcement not to violate my rights. If I find one, it's getting tucked down in the seat of a taxi in one of the two major cities in Missouri.)