Prime Rib question

I got a a couple frozen prime ribs for Christmas and only used one. The other, I took out of the freezer on the 23rd and put it in the refrigerator. I kept meaning to take it out and cook it, but holiday obligations kept coming up, and now I wonder if it's still ok to cook tonight. The place I bought it said it was good for 5 days in the refrigerator, but is an extra couple days a problem?

• Give it a sniff. If it smells, then throw it out. If there is no smell, it might be okay (although it sounds dodgy given that it has been frozen).

• Shouldn't it be ok if it's been frozen/refrigerated? That's how beef is "aged" after all.

• Of course not, once meat is defrosted it must be cooked in 24 hours.

• R3, No.

• How do you think they age meat, OP? Rinse well, pat dry, salt, sear and into the oven.

• r4 Also thought he couldn't get AIDS and is now on antiretrovirals.

• Yes. It will be fine. It will start losing flavor after day 7 in the fridge, but it will be safe.

• R4 is a perfectly healthy female who cooks and knows how to use Google.