Ok Zephyr, let me rephrase the question so you know get the basic idea
What would you do if you were in a coma, in a hospital room that was locked, and someone was kind enough to have slid you the key.
You exit the room and find the hospital trashed, and the city of London utterly deserted. You then enter a church where you see the priest, you call to his attention, but notice something wrong, his movements erratic, and he's not answering, just hissing and growling.
What would you do in a situation like that? (not necessarily the inside of the Church scene but in the deserted city with ravenous ghouls)