I asked someone from CSX that I know who knows people who would know, so we'll see...and yes, that's a lot of "knows"
If you happy to be down that way, any ground level perspective pictures of the main area of operations, especially of the Wells Group Concrete, Tetra, and whatever building that is on the southeast side of the highway overpass that receives covered hoppers, that you can get safely and legally would be super helpful, as I'm mainly just working from google now. I had family down that way that I used to visit but they moved.