"If we cross paths with anyone needing help we're going to stop." At least, Steve would. He wouldn't leave someone struggling against a horde of undead just to get to the source. The streets were relatively clear at the moment but the longer this rising went on the less safe the streets would become.
A check of the cemetary, find the source and then from there the next course of action would be clear. Normally, he liked to be a little optimistic but this place didn't allow for that. His guess was they'd find nothing and have to focus on finding a safe place to hunker down until the undead horde could be stopped.
The zombies weren't terribly bright but they were determined. A few at a time lunged for them over and over. The crowd was thinning and it was easier to move through but unlike the undead Steve would eventually tire. He hoped they had a solution before that happened.