It's actually illegal to be within a certain distance of railroad tracks in many locations. At the very least you could be cited for trespassing. Yes you could be charged with theft of railroad property. They could even tack on worse charges if they ...
try csx.com or nscorp.com they are two eastern railroad companys
go to the block line.com go to the American Association of Private Railroad Coach owners. Go to the prr fan club this is an easy one.