Some states say if you are towing a trailer that is rated for more then 10,000 lbs you need to cross the scales so the can of worms gets opened.

There is one thing that tips the DOT off to your weight it is the DOT reflective tape on the side of your trailer. Trailer manufactures are required to put DOT reflective tape on trailers rated for over 9,000 lbs. So if you have a 10,200 lbs rated trailer it will have the DOT tape down the side which can be seen night or day from most scale houses or the road side cameras.

I am not saying anything but a heat gun and some spray from 3M will make it easier.