While ordering the city to "cease and desist from maintaining a vehicular ticket quota, " the ruling didn't address setting numeric minimums on quality of life summonses, though a subsequentchange in state law made setting quotas for those summonses illegal.
Certainly the warm period increased the productivity of crops which led to an increase in population, the subsequent cooling (and more importantly, change in rainfall patterns) reduced agricultural productivity and led to hunger and starvation.