LOL
I did 4 years in the USAF (2 on Flight Crew-551st TAC), and attended Survival School down at Tyndall AFB. During the weapons training, (Colt 45ACP), I clearly recall the Instructor giving holy Hell to a "student" who was asked to hand over his weapon. It was holstered on his right hip.
The CMSGT yelled "Surrender your weapon!", and the guy reached down to take it out and was told "YOU DON'T SURRENDER YOUR WEAPON WITH THAT HAND; USE YOUR OPPOSITE HAND OR I'LL ASSUME YOU'RE DRAWING DOWN ON ME..."
That's the only source I can attribute it to, but I do remember hearing that, and all the weapons were loaded there on the range at that time.
Contrary to popular belief here, I wasn't in the military when the standard issue was the muzzle-loader.
When I carry, it isn’t physically possible for me to disarm with my left hand. At least, not with endangering me and anyone near me.
When I carry IWB, I could if I carry crossdraw. If I carry it at 3:30...nope. Ain’t happening. In my normal pocket carry, no way.