Ha!!
Yes, it is surprising what plants can take if they have had time to adapt themselves. Any idea how cold they got in the garage?
I was really surprised when I kept a thermometer out in the attached unheated garage, setting upright on the floor 6ft from the heated house. Nights have gotten down to 30 something below over the winter, but the minimum temperature on the thermometer was recorded at minus 1F.
I have a story, too.....
I had a lot of cull bulbs from my own crosses that I dug and saved to eat. I had brought them in from the garage when temps in the garage were 10F and below. This bucket I neglected to put back out, and it's been inside for a couple months!