Public officials should not be ridiculed due to attaching one insignia to a police cruiser.
There have always been emblems. Some represent honor, some dishonor or disgusting garbage.
This emblem is not an ignominious token such as a swastika. In fact, this fish is one of the most important objects of Christian symbolism.
Of course, the possibility exists that the ACLU may consider the fish species as a cold-blooded aquatic animal. Instead of separation of church and state, it may be separation of insignia from car.
Hats off for making what is believed known - although it may have gotten less attention and been more acceptable if extraterrestrial hieroglyphics been placed on the car.