Lock the hall door and sleep in the office
From Create Your Own Story
Leslie doesn't seem to like the idea one bit, arguing that the couch isn't big enough, and the glass walls don't make her feel safe, and blah blah blah. Eventually, you simply let her lie on the couch, and you settle into and office chair and prop your feet up on the desk. You lie the weapons in front of you and shut your eyes, listening to the rain and the wind outside.
You awake at some point in the morning, and you're sure you can hear footsteps in the hall. You get up and put your ear to the door, and surely enough you can hear the sound of feet clomping around outside. They're loud, and it sounds like a group of people. You find yourself in a hazy panic, still half asleep. You can only imagine what's come into the station, and what it will do when it finds the two of you.
"Anyone alive in here?" You hear a voice shout. "United States army," the voice calls out again. "If anyone is alive in here, announce your presence now!"
You jump in place, so excited for a stroke of good luck. "We're in here! Two of us! We're alive!" Leslie sits up on the couch, confused, rubbing at her eyes. You unlock the door and swing it open, and are greeted by several armed men with flashlights attached to their weaponry, and the light is nearly blinding.
Within an hour, you're whisked away to a military camp, where you're quarantined while medical officials search your entire bodies for signs of sores. When they're sure you're not infected, they release you into the camp with a fresh change of clothes, and pointing the way to a large tent where food and water await. You never see Leslie again, but you don't count that as much of a loss.
You make a life for yourself in the camp as much as you can, taking up duty in the food tent serving the other survivors. You spend the rest of your time trying to make new friends, and dealing with the guilt you feel for losing Melanie in a moment of anger.
Congratulations. You survived the end of the world.