How to Freeze and the Science behind it. Long Post

Of all the reports written about beetles and what to do, this was by far the best and most informative. Outstanding job! My question is this...since I have a walk-in humidor crammed full of smokes (dont ask how many) and never have frozen one of them, am I too late to start the freezing process. Not only is this a hobby that I love, but, it is worth a lot of $$$ to be destroyed by these little beasties (Padron pic). Any info would be appreciated.