Never saw this before!

Why not?? Soon they're be asking you where you spent that $601.

Or did it just go to $1201??

I have only entered one once--they chased me and my friend down in Burlington, NC and took us back to the scales. My stuff was ok but his was not. The few $ he saved the way he was registered was nothing compared to the fine he paid and the trouble he went through. But I have been all over the US and have never stopped.

10,000 pounds on four or six tires (1,666 to 2,500 pounds) isn't what any state is concerned with regarding the destruction of pavement. An 18 wheeler at 80,000 pounds is almost 4,500 pounds per tire.

I am SURE that if any RV'r passes a weigh station without pulling in they will not be chased...

Those LEO's are not concerned with RV's... Not the slightest bit..

That is JUST MY OPINION . .

It's here in CA but not yet stated on signage. I've started to see the term " rental trucks" but nothing related to lbs. A truck owner is required to fill out a declaration of GVW and CGW upon registration. If over 10,000 lbs, the front license plate carries the current year with the small corner sticker and your declared weight is posted typically on the door with another yearly registration sticker.
I was able to enter a small set of scales and talk to the officer at the desk. He never took his eyes off the monitor while looking upstream at his video streaming trucks of all size entering and yes....bypassing. This area is common for doing a sting probably monthly.