Over the years I learned many a thing..."Officer Discretion" can bite you on the butt.
Officers are able to ensure that EVERYONE runs in a safe manner...whether be car , motorcycle, van...if your front tire is wobbling back and forth and an officer sees it...you'll get pulled over...thats just the job...
I think we van drivers get to focused on BIG truck laws..."if you appear" to be driving an unsafe vehicle you are a potential target
examples:
Illinois
A police officer may pull over
any vehicle suspected of exceeding weight limits.
Nebraska
All trucks over 1 ton must stop, except a pickup truck pulling a recreational trailer.
New Hampshire
The driver of
every motor vehicle shall, upon request of any law enforcement officer, stop and submit such to a weighing of said motor vehicle by means of either portable or stationary scales. If such scales are not available at the place where the stopping occurs, upon request of a law enforcement officer, the driver shall drive said motor vehicle to the nearest public scales provided the distance to the public scales does not exceed 10 miles.