This can't happen to you! You always buy a ticket when going to the railway, still the checker found your without ticket and you got a fine. It seems that somehow you lost the ticket, but the checker didn't care. Now you have to pay a find of 40 dollars, but you don't have that amount of money. Same as you lost your ticket, people use to lose money around the railway. So start exploring around and find hidden dollars until you get 40 and you will be able to pay the find and escape from the railway. Look around for clues where the dollars could be. Have fun!
Walkthrough for Railway Station