Without knowing how it was wrapped, how long it was in your car before you got it home, how cold your refrigerator is, and where you stored it in your refrigerator, I'd say you're pushing it. Too many variables to let it go any longer without cooking it.
I would recommend cooking tonight and reheating it tomorrow or do as BreezyCooking suggested, cook it, then freeze it for use in a recipe later on.
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!