Shell at Fishers Landing

I purchased their top of the line wash (spending $20).  First I had to wait for the attendant as he was not at the wash.  Then he told me I should not have purchased that wash as he was offering a special but he told me it was too late now.  I went through the wash and it didn't even clean the bird dung off my windshield that had been "desposited" there only an hour or so earlier (part of reason for getting the wash).  There was dirt all over (especially the trunk area)and doors.  I spoke with the attendant and he told me he couldn't send me back through or offer a refund as there was no manager or owner there.  He took my name and number and I was told I would get a call the next day.  I had to call several times to finally get a call back (13 days later).  I was told there was nothing they were willing to do.  They wouldn't let me go through the wash again or offer me a refund.  I was told my only option was to talk to the owner who would hopefully call me back within 48 hours.  Not holding my breath.  Filed a complaint with the WA State Attorney General's Office and will take them to small claims court if not resolved.  It's more about principal than the $20!!!