[oldvirginian]

No, it was loaded straight onto an empty dry van.
No cooling blankets, paks or anything.
I was still on the dock when the Mexican driver pulled away. He just shut his doors and left.

As to the time from El Paso to Mexico City, I don’t know what the road conditions are, but I expect it’s lengthy.

The trailer was one that wouldn’t be allowed on US roads. No ICC bumper, most of the lights knocked off, and looked like it should have collapsed at least a year earlier.
The tractor looked like A 1970’s model.
All in all, not confidence inspiring.

A friend of mine has been to Mexico many times, his advice was don’t ingest anything not imported.

[Vigilanteman]

Wow! I hope whomever was selling the butter made the buyer take possession at the border. I can't imagine the cargo was in great shape by the time it arrived in Mexico City.

When I was young and lived in California, we took a day trip to Tijuana once. Our host told us three types of beverages were OK: carbonated, imported or alcoholic. The locals especially favor the later.