"Hopefully there is a way and it's not just the world power." If it was the world power then they were essentially screwed until the world decided to stop throwing zombies at them. A source could answer their questions on what happened to two of the population.
Steve did a quick bit of math and then hurled the shield so it bounced back and forth down the street, off zombies and off walls then flipped up into the air. He ran for it, sprung off the shoulder of a zombie and grabbed it in midair. It was enough to give them a decent path towards the cemetery.
"Let's go," he said, jerking his chin in the direction they needed to go. "I have a feeling if we move slow enough they'll follow and we can take them out without getting overwhelmed."
The zombies were interested in taking bites out of them so they acted as bait to hopefully lead them away from the station where others might go for safety.