They should be happy it was the US Government that found out and not the Thai Police. They have an incredibly low tolerance for drugs in Thailand.
Not if you pay them off.
Back in 73 or 74 at Udorn, I got busted by Thai Police after buying a "brick" of Thai sticks for 100 Baht ($5.00).
The cops drove me to my house where I got 35 dollars (700 Baht) in cash, and paid the cops.
They gave me back my weed, and left.
I had to move after that, because they kept stopping by for another "shakedown.
I'd rather get busted by the locals than have to face the Squadron Commander for an Article 15.