Transportation and the real costs of choice

With all citizens and their public representatives in office and (almost) each and every city employee well versed in the cost of running our city, why is there a given choice to the temporary DPW manager who is now the permanent acting director of not the DPS but the DPW , as assistant assistants to the deputy running the Water and Sewer Plants have been chosen, as to offering a four wheel drive, diesel truck, equipped with siren and police lights? We (as taxpayers footed the  investment in lots of insulation to deaden the road noise from route 95 high speed travel.) Was this a gift from the Sherrifs Department? If so then Why?And why would this temporary assistant to the Directorship need to drive such a vehicel? I would understand the Marshall needing such a ride. Even the Road Foreman on duty 24/7. But a Director in temporary position traveling the most miles of any city employee with city vehicle? A good manager would know this and take action.