If I were you I'd kill myself, just to see if there really is a god.
Seriously though, I think the idea of deliberately putting out expired products on the shelf is wrong and should be reported. What if someone gets sick or worse from one of the products and sues the store? Isn't there some authority this can be reported to?
I remember recently I bought a pack of biscuits that were like months past their sell by. They were horrible. Well, the one I ate was. I went back to check the shelves (Tesco) and they had a bunch of expired packets so I went to the customer services desk and explained it. She gave me back my money (which I didn't want) but also went and personally removed all the expired packs, which I was glad of.
But like the guys say, you can stand up for what is right without bringing that god person into it. Who does he think he is anyway? God?