It totally intrigues me when a vulnerable location, for whatever reason, is able to avoid the fate of most of its counterparts at the hands of scrappers and vandals. I haven't yet figured it out, but there is a place here near the TX/OK border that has:
1. super easy entry
2. lots of valuable components, not to mention gorgeous frames and custom woodwork, just leaning against walls
3. NO vandalism, no (or very little) theft of these unique and some very valuable items.
4. It has very high visibility and it's been abandoned since the freaking 1980's-early 90's!
It's like a few of these places have an invisible shield or something.
Still blows my mind...
I do want to see this spot that you posted though. A San Antonio friend offered to take me - if only it was a little bit closer!