He's a service animal so I can get away with more. And I'm not terribly worried about legal.

I was going to bring his plastic carrier but then decided I didn't want to carry that thing around. I have a sling that I carry him in if he doesn't want to walk or something so I just wanted a crate for times when I need to leave him or keep him out of the way. (You know how dogs are about running underfoot at the worst possible moments).

On a side note: you should see the reactions I get when I carry that spoiled mutt in his sling. People either think it's super cute or I'm insane. The later is of course closer to the truth.