The best response to what the description of the setting in this paragraph reveals about the author’s meaning is:
The narrator knows more than what is being shared.
This is because the details of the drapery shop being closed, the crape bouquet tied to the door-knocker, and the absence of a notice suggests a deeper significance related to loss or mourning that the narrator is aware of but does not explicitly convey, indicating an underlying tension and knowledge beyond the immediate description.