littlek, you're a woman of my own heart!
I can't see the urgency of having a spotless car at everyone else's expense, either. I just let my little car get dusty for a while, then take it to the car wash around the corner (which uses recycled water) when I can't stand it any more. Simple!
It causes so much bad feeling when people see others disregarding the restrictions simply to wash the car, I can tell you!