Yes!!! Louis' Truck Wash near Savannah. They did a great job for us last year on our Christmas trip...December 23rd and they had literally just turned off the lights as we were pulling up. They opened back up for us and did a wonderful job - didn't rush at all even though I'm sure the guys had places to be.
It is exit 87 off of 95 (US-17) on the west side of 95.
The Google address is incorrect for it, though...so don't Google it! It is right across the street from the Love's truck stop on the West side of 95. Google has you go East - don't do that. It must be their business/billing address or something.
Incidentally, it is the same exit as the Savannah South KOA.