No
yes because seb spratt got life for doing that
If it is on the road's right-of-way yes, it is,
to keep the rocks on the road and the soil near the road.Also to keep the road in place.
If they all did not pick the same side they would end up driving into one another head on.
yes
on the side of the road in a pick-up truck, that's how it's done in the south.
they were built with smooth rocks on the to top. Then on the side there were paths for people when solider were marching down the road.
Yes it is "Legal". Road signs and thus local road rules such as speed limits are detirmined by counties. There is not a law which states that counties cannot detirmine their own speed limits. There are numerous reasons why speed limits might be different on either side of the road such as corners or schools etc.
In the United States, it is always the right side of the road.
It means you have a vivid imagination, or you have been taking mind altering drugs such as LSD.
Don't ask for trouble. If there is nothing wrong don't go looking for it.