This should be one that AOPA is alerted. I beleive that any crime involving aircraft damage is a federal offense if the airport has received federal funding (which most do). Had it been operating at the time, it would have most certainly been an issue for the FAA enforcement section. This is a good one to keep tabs on and seek clarification from agencies interested in this type of activity. I can tell you that when a car busted through a gate at Dallas Love Field, granted an airport operating Part 121 scheduled carriers, the feds were all over it.
sbirch - are you saying if the plane had been operating at the time of the incident instead of being parked that FAA enforcement would be involved? My thinking here is that if I owned a plane that was damaged while parked that I would like to be able to involve the FAA if local LE did not do their job.