Upon arriving at Mr. Rose's home in the desert, Dylan scratches his cheek with the tops of his fingernails and asks Charlie what Mr. Rose does for a living, to which Charlie replies, "He's in vending machines". Dylan replies, "Why didn't you just say he's an olive oil importer? You mean he's connected?" Both Dylan's gesture and his comment are allusions to Francis Ford Coppola's 1972 mob masterpiece The Godfather.
The cheek-scratching motion is a famous gesture used by Marlon Brando while playing Don Corleone, and the Corleone family's legitimate cover business was Genco, an olive oil importing business.