I believe I got myself stuck. Once I came back to the station, after finding and saving Heinrich, I entered the train. I died inside the train because of radiation, with no rad meds left, and now I am stuck on a loophole of sorts,on the which have no other way of getting out other than starting a new game because the game auto-saved. What do I do?
I am still giving the game 5 stars because, let's face it, this trilogy is downright amazing, and this won't change because of a little glitch.