Signs of the Infected

When you go inside you notice that the store is dimly lit and it's hard to see anything. You reach into your bag and pull out a flashlight. From what you can see the store is deserted. the shelves are filled with all kinds of food. You go over and grab a cart, then you start collecting supplies for your family. You are really proud of yourself that you made it this far.

You collect enough supplies for your family for three months before you decide that it's time to leave. You go to the front door and see that a new horde has formed in front of the store. They look right at you as you stand before them on the other side of the glass.

Now what?