In an age of malls and superstores, this is not a claim most Madison groceries can make -- at least not if you ignore the literal wording of the sign (most humans are lucky enough to "come on feet" everywhere) and focus on the intended meaning, "come on foot." Of course, if gas prices keep going up, that might change.
Years ago we lived near here and the Norris Court Grocery was our neighborhood grocery store. But it didn't have this wonderful mural back then, nor the cool red stylized bicycle sculpture bike racks. You can see it at the corner of Patterson and East Johnson. You don't even have to come by foot, although locals would probably prefer it if you did.