Hmm I guess it just all depends on the local store. It's probably not allowed technically, but some stores may choose not to enforce it or be lax about it. I know they definitely don't want big huskies in their stores unless it's a blind-assistance dog. I, myself, as a customer, wouldn't want a dog that big around either. But small dogs in their own confined space and that don't bother anyone else, is fine, in my opinion at least.
