I know how to stop this. Load up a suitable plane with a tank of coronavirus laced sticky goo and fly in front of the intruder. Spray liberally. Maybe add hard to remove colouring agents to make it just plain too annoying to bother with.
And since those damned drone things are being touted as a danger to aviation that justifies effectively banning model aircraft, at least get some use out them; fly a wall of them in front of the intruder and let them test how good their engines are at handling FOD.
