Opening and closing the door several times a day is not necessarily a problem nor its location in your garage – but the issue is about the temperature range your refrigerator has maintained. If the meat has been too cold and/or actually freezing then the aging process has been hampered – BUT not spoiled! Is that refrigerator a frost free unit?
I hope you have read the rest of the useful information at the left. When you are smelling the meat tonight it may have a slight earthy or nutty smell as it should.