Well since I can zoom in on your backyard with google earth what do you think the authorities can do? I guess ignorance is bliss.
Lady, or sir... I cant help but guess why your paranoia has manifested itself in this way. I'll avoid that part.
Okay, I'm not sure the technology you're talking about even exists. But if it does law enforcement doesn't have access to it. And if the NSA thinks you're a worthy target, I think the nail in the coffin probably came before the drive to the hydro store.
If the government ever launches predator drones (which I'm sure would be renamed to something more fuzzy) over our cities..... thats when you can worry about people looking down your top when you're outside.