First of all, thanks for taking the time to seek out the correct information. That very commendable, and its important until this situation is resolved.
As you walk downstream toward the posted property, there's a water ditch/tree line that runs across the field between the railroad tracks and the creek. It shows up well on both Google Earth's and Bing Maps' aerial views. It's well downstream of the tractor crossing. That water ditch is right around the property line, so if you stay upstream of it, you should be fine.
Progress is being made (slowly!) in getting the guy the tags he's after. The Game Commission wants to make that happen, and the local TU is doing what we can to help. As long as no one says or does anything stupid to the landowner, this situation still has a good chance of ending well.
If you'd like to PM me or contact me through the TU web site, I can answer any additional questions. There's only so much I can post online at this point. Again, thanks for raising the question.