Yeah, you get the impression they wanted to throw in as much stuff like that as possible. It does contribute to the effect, but it also feels a bit cheap, like Neo living in apartment 101 in The Matrix.another thing they do, which isnt necessarily a bad thing, is piggy back on whats already there as myth, eg the number 23
having that door number isnt a trippy coincidence its just a nod to the 23 thing