Feast III: The Happy Finish (2009) on Netflix

Plot summary

The monsters attack the group sheltering on the roof, and the survivors make their way down to the jail, where Hobo comes at them and the biker women beat him down. Greg still has a pipe lodged in his head. He tells the others that Slasher owns a lot of used cars, and the group decides to run for the lot. Lightning came through the explosion near him and stumbles off on his own. Shitkicker breaks his way in at the front of the police station, and when a gunshot alerts the monsters, the creatures pour into the station.