A mad rush ensued in the direction of the helipad, but given narrow streets, there was soon a bottleneck of zombie hunters and zombies. The players chewed through the zombies, and the zombies chewed back... with the result that several players had to return to the starting point, after falling just short of the helicopter.
Finally, Anthony played Alternate Food Source, which caused the zombies to stop attacking the players while they gnawed on something else - allowing his figure to make it to the helicopter, kicking the hapless zombie off the skid, and flying to safety as the other players watched in envy.
Our game concluded in 2 hours, while the other game was still going an hour later.