it says that there are a plethora of abandoned buildings and that they are easily accessible.

Sorry, It screams "I am going to what I want to do with total disregard to the other taxpayers of public property and I will force my view of art upon them"

You have documented what is trespassing ,vandalism ,and destruction of private and public property for your own singular belief or agenda you are no different then a scrapper trying to justify destruction ,are you willing to foot the bill when it comes time for the clean up on those properties?

The poster above gave excellent advice: Take nothing but pictures, leave nothing but footprints.
That is the signature of a respected professional and artist.