I would like to think that I could survive for a while.
the hardest part of all of this will be the initial breakdown and the exodus.

Raise your hands if your PRIMARY Survival plan involves the word "GO"

You and 400 THOUSAND Other people
There is another 400 Thousand that will follow you simply because "Everyone else is doing it"

Pre-cut 3/4 Ply with 2x4s and carriage bolts
whose got them?
If your answer is Home Depot or Lowes, you are in trouble right now.
The initial exodus will Bog traffic avenues and everything will become a parking lot.

Is it a Perfect Plan? Nope... the perfect plan is a pipe dream. but it beats the hell out of trying to get to the Mountains with everyone in the Denver metro stuck on I-70 or I-25.