this is fail incarnate.
in many states interfering with a lawful hunt is illegal they can stick to the roads and protest but harrassing hunters and game(IE bull horns, low passes with aircraft, sirens ETC) is a criminal act. also, UAVs with active surveillance equipment onboard are criminal on US soil, even to the armed forces. PETA would immediately have their brand new UAV confiscated and every person involved in the purchase, operation and even knowledge of operation can be charged for invasion of privacy, and harassment and conspiracy.
so go ahead PETA, give it your best shot.