You droop your shoulders and begin to slug around the club like all the other zombies, hoping nobody notices that you're human.
You carry yourself slowly towards the back exit, as you enter the streets of Manhattan, you begin to notice that everyone in the city is a zombie.
You find shelter in a high rise in Midtown and aquire weapons, water, and food to last you for the next month.
The sky is dark and the zombie apocalypse has begun.