[jwoodard]

This might sound to simple and is not intended to be an insult to your intelligence, but are you certain you are trying to turn them in the correct direction for loosening? As you face the spinner you should be loosening them by turning them towards the front of the car. Or, the right side front and rear wheel spinners are loosened by turning them clockwise and tightened by turning them counterclockwise. The left side front and rear wheel spinners are loosened by turning them counterclockwise and tightened by turning them clockwise. If your are turning them correctly, a couple blows on each wing of the spinner with a lead hammer should get things moving.