Fascinated to know what Orographic does now...teach 'speling' presumably?
Securaplane would be devastated to hear how unlikely their equipment would be to work in such a hostile environment. Many corporate operators have installed Securaplane for passive security monitoring and this includes motion sensors in all wheel wells (just like the ones you have at home for your burglar alarm).
In the event of someone poking their head (or more) into any of the WWs, both the time and location of the intrusion is recorded. The operator would then visually inspect the relevant bay and eject any foreign body(sic!). This would appear to offer a fairly cheap and viable solution to a tragic problem.