In front of the bay we have the standard disclaimer sign from TSS referencing Antenna's, bug guards, light covers, prior damage, luggage racks, loose molding, non stock items. On the front of the pay station, 6 inches from where they insert money or credit cards we have a sign that says "ATTENTION, This is a touch wash environment. We are not liable for vehicle damage claims of any sort."
Obviously if our equipment messes up, then it's our fault. But this has pretty much taken care of any and all frivolous claims from people looking to get their car repainted by going through our Tandem wash and then claiming scratch damages.