It looks like an ornate box turtle. I grew up in Southwest Missouri and commonly saw both ornate and three-toed box turtles. Ornates do not eat much vegetation, they are primarily insectivores. She is probably looking for a place to hibernate. If they are not native to your region I'd definitely contact the wildlife rehab area. They like to climb into puddles of water sometimes but are not water turtles. She's cute . I miss seeing box turtles.

http://www.gpnc.org/ornate.htm