Not a good idea to release it where you are if it's a butler's...there are no butlers in that area. I'm leaning a little towards eastern garter from what I can see on the pic. Butler's are smaller garters. I used to catch them in Michigan a lot on the base I was stationed at. From my experience, looking at the size of the snake, size of the eyes on the head, it looks like a juvenile. Butler's are around 15-20 inches full grown. It looks like that one is half that size....its hard to tell actual length in the pic....The eyes are still pretty large in comparison to the head size so it still has a lot of growing to do... also that one looks like it has a more pronounced checker pattern than I have seen on butlers.... That's my guess on this cute little snake.