I didn’t, though the only Pynchon book I’ve read–er, finished–is The Crying of Lot 49. The links between Pynchon and cyberpunk (the genre, or aesthetic) seem somewhat indirect, though maybe a handful of references should be expected. I don’t recall any drop points labelled W.A.S.T.E. or seeing any trumpet-like graffiti.
Maybe I should give Gravity’s Rainbow another try.