Yes it works. Well, when done right it works. It'* just the hot&cold thing that'* been used forever.
The trick is, will you get it cold enough with the canned air you have? And, does your hair dryer put out the right amount of heat? Maybe, maybe not. Can't hurt anything by trying, but don't bet any money on your results at home.
In conclusion, give it a shot, it does work. But, don't call BS if you can't get it to work with what you have on hand....