Yeah, maybe the developers struggled with balance too. I said to my mate that it was a shame that petrol, food and water are pretty pointless after a while and he said he wasn't bothered as he just wanted to tear shit up and not worry about fuel etc.
There's just so much potential for a game in this world that doesn't have to be limited to an arcade romp. When you end up making those stores for fuel/ammo/food/water at strongholds they should become raid targets for "enemy groups" or even those that aren't the cartoonish bad guys like the war boyz but people just looking to survive. I'm like 3 hours in so who knows, maybe that stuff actually happens but I feel like it's absolutely not coming and that like you said resources will become a joke.