I have a Choice grade Brisky in the fridge from Cash and Carry for 25 days now. Yours will be fine. I usually try and go for 20-30 days and never had a bad one yet. Nice and tender. Hope you get better soon.
Rec-Tec#1165, Traeger 075 Texan (1990's model), Weber Genesis E-330, Bradley digital 6 Shelf Smoker