We are even expecting some low 70s next week... And I did plant the garlic fairly deep (3"). Unfortunately, I had bought it a few months earlier not realizing that Fall was garlic planting season, so I stored it in my cool, dark closet for a few months.
It sure seems that by now, 6 weeks after planting anything that hasn't shown probably won't.
I'm thinking I might just get out there and plant a pea cover crop. According to ATP garden schedule, I can do that around December 18th, and I have plenty of seed. Perhaps I'll order some more garlic seed, too.