Ah, that blaring horn from the Season 6 premiere. It seems like such a long time ago when the biggest question on our lips was 'Who is honking that horn?' - a simpler time, and a slightly happier one.
While that issue itself was resolved, it's been noted that there is a similarity between the scene and that of another beloved AMC series, Breaking Bad. The sound of the horn, combined with the screen then fading to black, makes it pretty reminiscent of the Breaking Bad scene below. Of course they're not direct parallels, but given the show has paid homage to it's network sibling before - blue meth, Glenn's car, Merle's dealer sounding like Jesse Pinkman - it's probably safe to assume that this is a knowing nod. And if not, it's fun to assume that's the case.