Yer, I think kerrie-ann (my wife) will say about the same as you just have in regard to me... cause I do very much get like that. We try to control things, but it is really hard to explain to people what happens, because they don't believe us anyway. It is only people who actually have PTSD who seem to be able to truly know what each other is talking about, as we feel the same things.
It was said to me once, PTSD is like a fog rolling in over the mountains, so thick that you can't see through it. It is a very good statement of what its like for us. When it is happening, we can't see outside ourselves, as it just consumes us to a point where normal people can't believe, as they can't go there, or ever been there themselves, so it makes it very hard to comprehend.
The getting out of bed part seems more like depression than anything, as that is what depression does. Depression can be beat, though cannot be cured in conjunction with PTSD, as it is the PTSD itself that causes the depression, not like someone who only suffers depression, where they can beat it and never be bothered by it again. The business is a great idea, and I think your onto a winner with that one in regard to getting him doing something.
The problem that you mention though, is a little bit PTSD, little bit Army training, and not actually one or the other. Military training is brain washing, nothing short off it. We are trained to a point where controll is via commands (a button to put it simply), where when the military need us to run up that hill, fight and kill the enemy, we do it without regard for our own lives. This makes us over alert to our surroundings, makes us hyper-vigilant and generally, everything has to be done right, our way or the highway, especially if your husband had senior rank or was a senior officer. When we leave the military, nobody takes this training from us, or reduces it to help us cope. There are courses that enlighten us to what is going on in the civilian work place and so forth, but no actual deactivation compulsary program that every soldier must attend. I doubt they ever would either, as this enables them to recall a person in war-time with minimal training requirement. If they deactivated us, they would have to go back to square one with every person when re-enlisting or called upon when needed.
What your husband needs to identify, is whether its the military component, or PTSD component that is making him so decisive and "black or white" in his decisions still. Military are trained to be "black or white" when decision making, no grey areas. Civilians without that training are black, white, grey and probably some other colours inbetween. Mix the two, and your gonna get a bad outcome....