Agreed.
Three radio warnings, maybe a flyby (to see if the pilot's not dead in the cockpit or the plane's not screwed - completely optional), then just light up his world. Something like that would stop the leftwing "demonstrator" nutcases really fast and would send the appropriate message around the world - violate a no-fly zone or ignore your ground controller and get blown out of the sky.
"Sorry bout your luck there, hoss, but we did give you fair warning."