Last summer a friend and I travelled west on route 20 through Iowa on our way out west. We stopped and took pictures of the barn quilts in Sac County. I was about to open the door and step out into waist high weeds when we heard the whoop whoop of the siren. Once the officer understood what we were doing he pulled out the same brochure that we had and told us about some of the people who painted those particular quilts. He and parts of his family did one, and then I believe he and his wife did one other one. It was an informative police stop and we weren't ticketed. I think he may have stopped us for "kinda" doing a u-turn.
Attached are some pictures I took and a couple of sites to check out.
Have fun! DI
http://barnquilts.com/
http://www.wbwbarnquilts.com/
this site about NC barn quilts might help you choose a pattern
http://www.townofneversink.org/barn_quilts.html