Washington scales are also always on, even when officially "CLOSED", and have weight displays easily readable from the scale platform.
I weighed our 32-footer at a scale just out of town one evening after it closed. I weighed 5 different ways - all four wheels on the scale - front wheels on the scale - back wheels on the scale - right side wheels on the scale and finally left side wheels on the scale. I had to turn round and approach the scale from the opposite direction to get the left wheels only weight.
I could then calculate the individual wheel loads.
I never found it necessary to alter the sway bar settings and the rig tracked very well. Most trips were coastal in WA and OR, so the winds were usually from offshore and steady. We made three trips into Eastern WA in the four years we had the Class A. All were over Washington Pass on SR-20 and into Winthrop. Our 32' Class A (an '02 model year on an F53 chassis) was a lot easier than our older (1986) 26' Class C on an E350.