Noticed multiple times, in different playthroughs, that zombies respawn even when the settings should prevent them from doing so. This is most noticeable at the Rosewood fire station and police station, where after killing all the officers/firemen, a few weeks later they will indeed reappear inside/around the building with fresh clothing. This is hugely unmotivating when the whole concept of your playthrough was limited zombies with respawns completely disabled.