I was stationed at U-Tapao Royal Thai Naval Air Station in 1972, when the Thai military took over the government.
(This was the USAF B-52 base at the time.)
The Thai provincial military commander drove onto the base, and announced that we were all under a form of ‘house arrest’, (Thai laws at the time had no such provisos).
Our military commander of the Wing told him, that we would touch off all the nuclear devices stored at the base, if he attempted to overrun the installation.
In saving face, the Thai commander ‘ordered’ us to resume our operations as normal.
If there is any truth to your story, it was a real nice bluff by that commander.