If it is state land on one side of the road then a hunter can shoot from the road onto public hunting lands (state land). The hunter can not shoot from the road onto private property without permission. Doesn't matter what type of road unless it is a private road not open to public traffic.
If public hunting land is on the side of the road that you shoot onto, then you have permission to hunt there/shoot from, on that public hunting land.
If public hunting land is on the side of the road that you shoot onto, then you have permission to hunt there/shoot from, on that public hunting land.