Sorry to be so late to this thread, but I just have to share the most effective way to handle this problem.
Call your congresscritter, both state and federal. No, they won't talk to you personally, but they all have local offices and staff there to help constituents with exactly this kind of problem.
Sit down & write out what you want to accomplish and what questions to ask them. I would explain the situation briefly ask what state & federal agencies regulate this particular railroad. Then ask the staff member who to call at each agency, and what their phone number is. Then thank them. Don't take too much of their time.
Next call the regulating agency, and when you get to the person who has been recommended, start your conversation with: "I was just talking to Joe Blow over at Congressman Cheatem's office and he suggested that you might be able to help me." Then go ahead and explain your problem in some detail.
What you really want is the recommendation from the congresscritter's office and to be able to truthfully drop his name right at the start. The state /federal agencies will help you to the best of their ability, because you now have powerful connections.
I have used this technique when dealing with several large companies where I had gotten nowhere on my own. In my cases, there was always a state regulatory agency, and every time, one phone call from the state regulator and the companies magically switched their thinking from not doing anything, to an immediate and very favorable solution to the problem...