Billy's idle observation of his neighbors from his apartment window is clearly a nod to Alfred Hitchcock's Rear Window (1954).
This episode title "Hadleyville" is also the name of the town in the movie High Noon (1952), the train station scenes from which haunt Billy's dream flashbacks.
Samantha Margolis' car is the new Lucid Air luxury electric vehicle.
More Hitchcock: In addition to the Rear Window references at about twenty minutes into the episode Billy McBride (Billy Bob Thornton) walks by The Brocklebank Apartments. This site was the home of the Elsters in Vertigo and the place where Scotty (Jimmy Stewart) started shadowing Madeline Elster (Kim Novak).