Footnotes!
Huh!
Good god, yall!
What are they good for?
Absolutely nothing (except citing references)

That said, I do like that there are pages with 3+ footnotes that all say, "whatever that means." I think it's cleverly funny; it gets across that constant conceit of marginal self-awareness from the protagonist. By which I mean the protagonist is aware that his internal narrative is inconsistent, but unwilling to sort it out.

"A puddle slept in the middle of the concrete like a watch dog." (Ch 2.2, p. 33)
is brilliant (and my favorite single sentence in the novel so far). Where are the rest of these amazingly evocative descriptions of the world of our protagonist? Why doesn't this tone poke its head up like a skittish groundhog in the first chapter?