Will Just Leave That Comment Hanger

(I am a woman and I just spent the night with my boyfriend. We don’t live together and I didn’t plan on staying the night. The next morning, I need to go to work and I do not have work clothes available. I decide to go to [Store] near work before coming. I grab a sweater dress and head for the cash register. At the cash register, the following exchange occurs:)

Male Cashier: “Will you be keeping the hanger?”

Me: *tired* “No…”

Male Cashier: “Oh, so going straight to work, huh?”

Me: “…”

(I paid and made a beeline for the exit. Later on that day I thought of a good comeback, but it was too late.)