Wow. Wowee. Wawoweewa. Somebody's gonna get beat up.
Very surprising. I can see him having a hard time being allowed to reintegrate. Hopefully it's just for a short period of time while they honorably discharge him properly; the Army isn't going to face the PR of kicking him out if he did legitimately go AWOL.
Otherwise, I imagine it's just to properly debrief him.