A and C
I think Nick has hit it on the head. Remember your first solo nav flights when you got geographically embarrassed so you circled the first airfield you saw, frantically poring over maps and trying to figure out if it was the one you were aiming for?
I have a fixed wing mate who did the same thing, unfortunately the first airfield he saw was Edward's Airforce base, found his way home though, courtesy of four blackhawks and an F-16 who escorted him all the way!
He was pretty happy when they gave him the benefit of the doubt.
Maybe there is a perfectly reasonable explanation, I bet that you could find out the registered owner's phone number in less than five minutes on the internet.
Later,
Helicopspeeder