Well this idiot statement:
only if you have untreated chips.
Would seem to contradict this statement:
I'm well aware of the expand / retract properties of freeze and thaw glass
Just to prove it so I think you should go outside right now and throw a pot of boiling water on the roof of your car and see what happens to all the windows as it cascades down over the car. In the name of science, of course. ;)