It will do a lot of good. It will show that Americans can always make peaceful protests and usually choose to do things that way rather than breaking the laws of their country.
We saw some of the convoy pass under us on I-84 in Danbury last Wednesday. Several hundred of us, all patriots, waving flags and signs in a peaceful manner to show support. We got thousands of supporting honks from non-participating trucks and cars in the meantime.
Some might scoff at the convoy making circles around the Beltway but if the rest of us can get on the overpasses and show our support, the movement will be energized and will grow.
If you assume that “the right to assemble” is illegal like the Communists. It is NOT, and was designed NOT TO EVER BE.