This basically the setup for Zom 100: Bucket List of the Dead. It’s an anime where a guy has his soul drained by an awful company and when there’s a zombie apocalypse, his first reaction is to break into the corner shop and get some beer and have a day off. It’s a fantastic series about living life to the fullest, and the art is so great: it’s incredibly colorful, as opposed to most super-desaturated apocalypse media.

and when there’s a zombie apocalypse, his first reaction is to break into the corner shop and get some beer and have a day off.

That’s basically the plot of Shaun of the Dead too.

Kind of, he doesn’t actually know about the zombies until after he goes to the store, he’s just on such hardcore autopilot.