Last year my knee was bad and I applied for the hunter with disability card indiana has. If your mobility impaired you can use a vehicle or atv to gain access and hunt from it if need be. Or if your impaired and can not use a bow they will let you use a cross bow.
I lost my card last year and called about getting a new one and it was easy. I gave her my name and address and she sent a new one out. I figured it my knee got hurting bad or after I get surgery it might get my back in the woods quicker. Well I got it today and I knew I could not get access on the FWA I hunt guess the road has to be accessible with any type of car.

Though alot of the roads not open are just gravel access roads.
Well I called the state forest in the next town(greene sullivan state forest) in dugger and linton indiana. I asked the woman if they needed any thing from me or needed me to sign anything to hunt from my jeep should I need to and she told me I can come in and fill drop off my name address, phone number, and what I needed from them and a copy of my card and if the park manager approved me I would get a key to the access roads that normally blocked from public use.
I did not expect that but that will help things. Now of course bow hunting from the jeep is beyond a waste of time but I figure a 2 mile drive down a road normally off limits to a spot no body walks to would make hunting easier.