Reddit comment:

We can assume that he can ride it for hours at a time in plain view without anyone caring. I bet it's just about near certain stations that they have people watching out, or just pick him up on a camera and call ahead a few miles down the line.

3000+ Reddit comments:

https://reddit.com/r/videos/comments/51uugi/guy_films_his_multiple_attempts_at_train_hopping/

Obviously he needs to make a blanket with camouflage that works on gravel. 

Haha. Actually that would work. :)