I served in the RN and can confirm that the marine ranges were frequently busted by amateurs and pros alike. The problem is that we could rarely get close enough to get a vessel name, and even if we did, the nausea of reporting the vessel was too great. End result, stop firing, wait til they clear, and carry on.
I guess it's much easier to track and ID a light aircraft, and then go for the commander - the CAA probably is rather better at prosecuting than the Coastguard.