CJ, keeping an acrylic glaze like Klasse all in one and then a coat of P21s or S100 Carnauba wax on the car will help protect this from happening in the future.
I do this on my black boxster and have had no more hard water stains or etching.
Thanks guys, I think first ill try the Local car wash for the polish, Ill pay extra for the sealant if its not included... If that doesnt work then ill do what you both suggested. Im just getting very very tired of that parks sprinkler system spraying into the middle of the streets the day after i wash my boxster. My arm really hurts from washing and playing my Nintendo Wii.