Update.
Even though I had to return to this location to receive a full refund, the manager on duty acquiesced and offered me a free dinner.
I did not accept any free food, but I did receive an email from Panera informing me that they would be more than happy to mail me a gift certificate as a "gesture of goodwill."
Even though their initial service is less than stellar, it appears as though Paradise/Panera is committed to improving their customer service.
Their attempts to rectify my issue are admirable.