Peaceful protests are great. Semis blocking roadways, commerce and causing noise pollution aren't my idea of peaceful, but besides what I think, they're not legal. Rioters that loot and burn look worse on a screen, but the economic impact of truckers blocking vital roadways is higher in the long run than a few nights of riots. Not to mention they block the path of ambulances, firetrucks, people trying to obtain essential services.
State DOTs already routinely scrutinize truckers' equipment, loads and paperwork. It's not a draconian "Soviet Union" thing to use the system that's already in place for public safety to continue to ensure safety.