LOL!
And the requisite footage of empty store shelves with no milk.
Seriously, what the HELL are you going to do with four gallons of milk?
I'd think that an average family might open a can of spaghetti-o's at some point, if they had no power.
Nobody is going to just eat cold cereal for a week.
When my kids were little, we used to go through six gallons of milk a week.