They're usually weighed in a hub, if someone catches it and bothers to get a revenue auditor to do so. Over 150 it'll get hit for over max weight, but the scales only go up to 200 here so if it's over that the weight will be listed as 200+. So much fun to guess if it's 205 or 290 lbs.
I have seen that happen once in my hub. They just used 2 scales and added the numbers together...