D.O. is a rather vague catch all. In my hometown (still in WI, but a lot further north). I've see it used, but never personally seen it abused (it was used on the town drunk a few times). But, in that situation, everybody involved knew what caused the D.O. arrest and pretty much agreed on its implementation, even if they weren't too happy about it.
I do like the cowboy dress thing. I would actually have to go out and get a hat.