Have these women been trained in proper washing technique...like will they remember not to take a rag used to wash the rear bumper and then use it on the hood?
Also, are you making sure that their bikinis are made of non-scratchy materials. If they have sequins or the like, I'd be worried about my finish.
GL with this, OP...hope you get nice weather for it!
I'm so depressed. No one wants to come see me. :(
Mangofy your E46!