If you get out at that location you'll jump over the fence and can take a wander. Sadly at one point it ends and you can't explore the city. Also, you can't get back without Ctrl+0
Ah yes, I'm not exactly sure where this is, but there's a similar situation in HRR at Essen Hbf If you arrive with the DB BR 425 on platform 1 and make sure to stop a little past the H sign, next to the fence, you can just run out of the driver's door and go over the fence and get in that same situation.
I like these little gems where you can explore cyrill.kroonstuiver Ben132465798 its a magic little bit of escape