One more thing...
When the owner of a semi parks in the lot of a private business, that business owner has the right to charge them for the use of that lot or to make them leave.
What did the owner of the property you were in say when you asked him/her if you could party in his abandoned building?
If the owner didn't know you were there and had posted ONE sign that stated "no trespassing", you were somewhere you shouldn't have been.
Just because your buddies turned it into a rave location doesn't mean that they own it now.

