It appears that during the police raid on Zeb's Farm, Zeb himself was killed during the raid. Now leaderless, the remaining Farmers' prospects of survival look slim.
However, it should be noted that despite losing their leader, the Farmers were somehow able to capture North Shore Industries, likely the follow up of of an attack planned by Farmer Zeb before his death.
As for the Authorities' report:
Large numbers of resisting Farmers were defeated near the Wild Boar Inn. The Authorities tentatively take control of the area, but road blockades planted by the Farmers beforehand prevent the area from being entirely secure.
A few zombies and Farmers were eliminated from around the perimeter of the city centre.
GPS to Takhisis