This livery is made by Advolt284.

This is only a livery of the Marshall Police Department for the ford crown victoria, totally fictional, based on the Danforth Police Department and Trumbull County Sheriff Office.

steamapps\common\State of Decay YOSE\Game\objects\vehicles\police_car\...

actual livery in the game you could replace is : police_car_01 , and police_car_danforth , you just need to rename it, and load your game.