Definitely call your states DNR and ask them. I live in Ohio and called about that same thing. I was told that it just has to be a "safe" distance which is judged by the hunter's discretion. Obviously you wouldn't want to be standing on one side of a road and shooting across it, but if you're twenty yards from a yard, and are shooting away, it'd be safe. The statement that safe distances are the same for all weapons and season is ludicrist. A gun shoots a lot farther than a bow, therefore you'd need to be farther way to keep things safe.

God bless,
Brandan