important things

Got a self serve car wash near you that allows you to just use a wand with no brushes involved? I remember using those in northern Indiana where we got the winds off the lake and lots of snow, ice and cinders. I just did that till it got warm enough to use soap and towels. Heck, it was just going to get dirty the minute I left the car wash so my aim was the 90% of the dirt, I didn't wipe the darn thing down as I do when it is warm...heck now I have a stack of old towels (some date back 40 years) I dry the whole thing off with. Sure is a big car and takes time compared to my Boxster.

 

I think a brushless automatic car wash should be OK, although I haven't asked the dealer.

 

Depending on your locale look for a self serve wand wash or touch free automatic car wash as others have said.
I noticed on a recent trip out to vancouver where real estate is at a premium I could not find any self serve wash bays, only drive through automatics.
Out here in the prairies you can find big self serve wash bays on every corner.
Personally I would stay away from the automatic brush washes, just use high pressure water to rinse the dust off and wipe dry with a towel if you feel like it. Heck, I don't even use soap anymore when I wash the v, just high pressure rinse with water, especially in winter it's just going to be filthy again by the time I get home, I usually wash it every day when they sand/salt the roads.