Has FerroMex bought some BNSF power? As you can see in this video, the lone locomotive is pulling a long train of what appears to be empty covered hoppers.

[streamable.com]

When the hopper cars are travelling southbound into Mexico, they're loaded with corn, grain and flour to make tortillas, tamales and taco shells. When they're empty and traveling northbound, they're transporting future Democrats, dishwashers, lawn mowers and street vendors. I know this may be hard to believe but SOME of them (not ALL) have arrest records and criminal histories.

Note the blue bags being tossed up to the people on top of the freight cars. That must be their Amazon merchandise being delivered to them. Or maybe the people on the platform are Door Dash employees.