So don't get out of the Army for a few more months. What's the big deal? His monthly pay for a few months extra service surely is more than $700. Stay in a few months, let them clear it up, if they don't then he's got the extra pay to cover it. As a convalescing soldier, he won't have any duties.
I find it interesting that Sheets was demogogueing on the floor of the Senate about this issue instead of making a 2 minute phone call to fix this.