So, first off... For those optimistic friends that wanted to comfort me by questioning the tanks, I can assure you, the black tank had a significant amount of stinky waste... And it wasn't ours!!! Thank you for the optimism... However, I had to face the ugly truth!!!
The rv store found the camper and the note this morning and called immediately. They offered apologies and agreed to clean and inspect the tanks. He also would check the battery that was not charging. He threw in a free winterizing... And then that was it. I restated the gross discovery again, but he did not bite.
I requested to speak with the manager who agreed on the horrific nature of the event. He agreed the 2nd inspection and the winterizing.. He offered to install a back wash thingy on the tank.. It already has one, I asked for a refund of some of the inspection money, he said he could work on it.
I am not one for confrontation, so I am sending my husband in for the nitty gritty numbers game!
So, all in all, I remained calm... Stuck to my guns and will continue our conversation tomorrow am.. I was unable to pick it up today, will head over there tomorrow!
Thank you for all your advice and well wishes for a poopless black tank! We are well on our way to a resolution!!!!