With a bit of luck someone will be able to trace this fool and hopefully clip his/her wings for a while. That was totally irresponsible behaviour imho.
Shame no-one was able to get a registration or even a partial for the plane, could be alot easier to trace them then, perhaps.
It wouldn't be a local pilot as they know better than to do that sort of silly nonsense, more likely to be a mainlander out for a jolly cos the weather was nice.