The launderette-cum-dry-cleaners downstairs is demonstrating a small, fairly inoffensive grammatical inaccuracy.
Or is it? Perhaps the launderette owner (launderer?) is actually using the imperative, ordering neighbouring shops to follow his exemplary opening hours. Indeed, the other launderette, across the street, seems to obeyed and has even taken up the same rallying call.
One thing's for sure: you can take your close somewhere else today.