They already do fly-overs in helicopters without the need for a search warrent.
IANAL - but it seems that if the US Supreme Court has declared that there's no problem with photographing you through your non-shuttered window, then you've no right to expect privacy in your non-opaque-domed swimming pool<humor>, You Perve</humor>.
It appears to me (who is ignorant of you) that you're getting hung up on my use of a single word.
Fine, replace "annoyed" with whatever word you think appropriate, and let's get on with meaningful discussion.
Really, just 'cause we're on Slashdot doesn't have to remove that as a possibility, right?
I equate governmental anger to the government causing a body count.
And it's an EMP that's local, then it's unlikely to frighten the government...
So yeah, annoyance.
While parts of the government may get violently angry about such a thing, the gov as a whole probably wouldn't be violently angry. If I get bitten by a mosquito, then the cells in the affected area are normally inflamed, but I as a person only want to squash the one mosquito.
And there's no real (long-lasting, or wide-spread) anger over it.
Hm... then the FAA gets involved and requires FAA licensure of anything that's not tethered and has directional control or flight stability.
IOW - balloons can still be released upwards, but no privately-owned drones - only government and corporate.
Hopefully the parent will get modded up for humor. But if taken seriously, it's still a good segue into useful discussion.
It'd be pretty easy to land in jail for that, as well. The "fried tech" would establish a radius, and therefore a center. And while you can try to do a covert op and put it in a box that's remote-controlled (blah, blah, blah, etc, etc, etc), it's amazing how good government forensics can get when you've actually annoyed the government.
It would seem to be one way to get labeled with the terrier-ist word...
Plus - have you considered what such a stunt would do for our individual "rights"? The Supreme Court has already declared that when you're in public spaces (including outside a building) you have no expectation of not being recorded both visually and audibly.
Backed up the system lately?