I got an email saying Papa John's is offering 50% off today only (Sunday, 3/3). Use code: COYOTES
Also, tuck away the codes below for future use. I don't know when each of them ends, but they seem to be working for 50% off (full menu prices) right now. I think it might only be in certain parts of Arizona. It might be worth a try, if you're ordering later and don't have a code. It's super simple to test since you enter the code before selecting your pizza.
Try these codes: PJ101, PJ102, PJ105
You have to enter the code BEFORE you place your order. There is a spot on the top right. After that's in, it will confirm the 50% discount and you can choose what you want.
Added note: Plus March 9th is Customer Appreciation Day at Papa Johns and you can get a large carry out for 5.99 Promo code599PHOCAD Not sure if it's at all locations. (Thanks, Sharon!)