Well, well, you learn something every day! The reference “After You, My Dear Alphonse” is to a popular comic strip starting in the early 1900s. It was the basis for a whole slew of different cultural products: books, a movie, this short story, and several vaudeville acts. The strip itself and the idea of it being a vaudeville act fit nicely with the way the references in the text work in an absurdist way.
What does the reference to the two clownish figures of Alphonse and Gaston do then? Does it change the way we analyzed the text?