It would be helpful here, however, the sidewalks are already pretty cramped. I would suggest a rack about 15 feet north of the shop on the sidewalk, or 10 feet south. For now though, lean your bikes on the chain link fence and just lock through that. Chances are you won't be in the shop more than a minute or two.

Just don't do this - http://www.flickr.com/photos/lpq/3814837716/