“I had never blown through a Chicken Coup at 55 mph, much less 75 mph.”
Then you didn’t have PrePass, electronic weigh station bypass. Your truck has a transponder like an EZ-Pass transponder. It tells the weigh station what company and truck the transponder is assigned to.
I got one specifically because I was making a lot of trips to/through Wyoming and stopping at the Port of Entry was a PITA.
It was the 80’s.