No kidding. Print a “never deliver to this address” card and give it to all the local pizza joints, and it wouldn’t take more than a month or two for all the places to accept and learn to help the poor dude.
I know. What an idiot!
Put a sign on your door...
“If you are a food delivery person, I did not order the food you are attempting to deliver. You will not receive payment for the food.
Your company has been maliciously taken advantage of by an unknown prankster.
Please leave now without knocking on my door or ringing my doorbell.
You have been warned. If you knock on my door or ring my doorbell, I will sue you for harassment. Leave now without making any effort to contact me.”