This looks like a protest sign! 「すぐに閉まれ！」 Is this bakery hoping that its competitors will go out of business?
Actually, this sign means that this particular cash register is closed. “Now” is unnecessary, because the sign would never be on the counter if the register isn’t closed! But you need a “d” on the end (the adjective form is “closed”, not “close”), and should be a little more specific: