How to Freeze and the Science behind it. Long Post

I haven't read all the posts here but as I await a delivery from UPS, something struck me.
You guys are saying that most manufacturers freeze the cigars to kill eggs/larva before they are shipped to the retails.
It seems to me that the delivery to your house may be were the cigars are exposed to high temps, triggering the beetles. Could it be that paying extra for, say a two day delivery, is worth the price? A seven or nine day delivery might mean that your cigs spend as much as a week in a very hot warehouse somewhere.
Just a thought.