Don't believe there is any restriction on distance from a road for ANY TYPE of hunting (firearm or bow). The only restriction is 500 ft from occuppied dwelling...and oh yeah, shooting across the road or from the road. So in other words you can be inches off the road, shooting into the woods and you are legal.
I had a guy telling me that I had to be 500 feet from his shed that was at the edge of his property line because he kept his ATVs and gas cans in there. Mind you - the house was about 1000 feet from this shed. I never pushed the issue because I could move but I was always curious if this was the intent of the law - do gas cans count.