Michael Savage proposed something similar some time back. If all the truckers stopped on the roads and bridges across the country, throwing out signs to express their outrage at illegal immigration / confiscatory taxes / socialism, it would be too big and widespread for the media to ignore and the public to NOT see.
They don’t even have to do that. They could just park at the nearest truck stop. If enough do it trust me everyone will get the message when they go to the store and see empty shelves and can’t even buy fuel because it wasn’t delivered.