I've taken mine into a convenience store located off a local trail. They don't have a rack, and they're probably used to this, being so close to the trail. I've brought it into a Subway, and not-so-LBS too. If anyone complains, I'll just take my business elsewhere. I was wondering if anyone's taken their bike into a restroom - I would hate to leave it outside, but I also hate bringing a lock on a rail-trail.