Nah. They're okay with people hoarding food, for now. It gives them evidence that there is an emergency that only government is able to deal with.
Once they've declared their emergency, THEN they'll make armed searches of everyone's houses to gather up all the food into central locations. They'll ration out the food to people on a daily basis so everyone is then totally dependent on the government.
I admit I’m getting more and more cynical about this whole thing.