i wouldn't switch new meat for what he gave you unless you were prepared to do that everytime in the future. Do you really want to do that?
Would thaw, check it out & if questionable tell your supervisor and ask what he wants to do. You're cooking for him for free, why should you buy the meat?
Large Big Green Egg
Weber One Touch Gold
Super Fast, Super Accurate Orange Thermapen
"If you really care about this place, you'll show some respect for it." deguerre
"I like no....I LOVE Beans!! I just don't want them or other any vegetable in my chili they take up valuable room reserved for more meat." Bludawg
(")_(") "Hang in there Dan Chambers!"