It is a time issue on how quickly the water will freeze. You had moved the car, so the inside temp of the air was not 32° F, so all that air/interior materials had to cool to 32° F before the water started to freeze, and the whole engine/exhaust system would also have to cool for the whole car to become cold enough to let the water inside cool. So it will take a lot longer to freeze. But if you had not driven the car in days and it was 32° F it would take the same amount of time as if you set it outside to freeze.

I'm Italian... don't need any help in that area!

Did I mention it was 70F+ today :P