Civilian airports can "shut down" by telling all traffic to (glibly) find other things to do. The traffic is still around. How resistant is all this traffic to jamming? and what kind of jamming? You can probably experiment with that around an isolated military airport. Perhaps. "Perhaps" because you still have civilian traffic in line of sight. I don't know that it's an easy decision to screw around with jamming around a crowded civilian airport.

What you can certainly double down on is tracking and close to the ground monitoring. And it would be surprising if this did not give results (over hundreds of sightings) as to who is launching them and recovering some hardware. Drones fall off pretty easily and it might be hard to repeatedly recover drones without getting caught if there is a surge of police around.