It took just over a week, but I just got a nice form-letter apology from the franchisee. While relatively impersonal, they did say they’re sending us a free night voucher in the mail. I guess they got my address from the check-in system.
So color me shocked, I never really expected a reply. Now the final test: does the voucher actually get here? 
The better question… do you have to stand in line at midnight to activate the voucher?