Cooling my extremities seems to cool the rest of me effectively. Cooling the ambient temperature creates another problem, increasing the ambient temperature for the rest of the world; it's a big problem. However, a car is a small space; I expect the climate impact would be relatively small.

Somehow dogs can get away with cooling through their tongue but the naked apes still complain about their whole arms being cooled?

Maybe humans sweat more than dogs and so feel a much greater effect from evaporative cooling?