No.
No, but you should check your local driving laws just in case.
No.
No
No
No
yes
No.
As the question is worded - no, they do not.
I would not think so under those conditions.
On a divided highway with a pronounced barrier, no.
When a wave hits a barrier, two wave interactions that can occur are reflection, where the wave bounces off the barrier and returns in the opposite direction, and diffraction, where the wave bends around the barrier and spreads out.
The bouncing back or change in direction of a wave after it strikes a barrier or object is called reflection. Reflection occurs when the wave encounters a boundary and is sent back in the opposite direction, akin to an echo in sound waves.
noAdded: While the motor vehicle laws of all 50 states have not been researched it can usually be inferred that the answer is probably no. HOWEVER - be sure you check the law in YOUR particular state on this matter.