I don’t see this as a cost-effective investment for nosy jerks. And if I see one of those things above my house, I will happily encourage some target practice in order to make jerks lose their investment in spying on me.
One of the many sinister developments of a metastasizing police state is that the citizens are encouraged to spy on each other. I would encourage every teenage geek in the free world to figure out ways to muck up the controller signals or hack the video feed of these intrusive devices. Somebody wants to intrude on your privacy? Intrude on their control signal and crash these nasty little police state gadgets.