This new tie evidence makes more sense than any of the previous theories. Getting laid off is more than enough reason for someone to pull something like this.
Toss a bit of money out and everyone is concentrating on where he or money landed. On the ground. Not in the sky. As you said, he hides and walks out dressed as an inspector with a big bag of money and no one’s the wiser.
DB Cooper is actually Vladimir Putin, according to an unnamed source DEEP within the intelligence community. Ha!