Coil Car sighting

Recently I saw a CSS freight at shops with about six coil cars lettered for Ferromex, the former NdeM. I've never really seen mexican railcars up here before. I'm guessing the train was headed for Rollcoaters.

I was just out at shops this morning and there's a covered gondola out front thats also ferromix. I don't really know much about the customers on the line other then GAF and thats only because its right across from the yard.