Well, the sensor idea sounds like a solution to an almost non-existent problem. A security system on the house would make more sense to alert you and the authorities about break-in.
The chip tracking is not going to go over well. Cell phones also track us, but it's in the user services contract we sign when we subscribe for service. Guns don't have subscriptions, and I don't like the idea of some random person behind a computer being able to track my guns. Also, that sort of technology drives up the cost considerably, something that won't go over well either.