What kind of car wash is Soapy's? Is it a spinning brush type, or a no touch system?
When mines really dirty I go to the spinning brush car wash. When it just needs a rinse off I go to the no touch. If there's a lot of crap in the wheel wells, or after they salt the heck out of the roads, I'll go into the do it yourself bay and hit the underside really good. I rarely get the bucket and sponge out at home anymore.
I haven't notice any scratches or swirls in my paint yet.
That does bite though, spending $7 and not getting a decent wash.
MD