Anyone had their rig weighed by authorities in these areas?

There was a fatal accident last year where an RV ran over and killed a State Trooper on a freeway. It was a large class A towing a large cargo type trailer. Now although I have not read the report, I'd be willing to bet a very large sum of money that one of the things the investigation team did was weigh that RV and trailer as well as inspect everything from the brake pads to the clearance lights.