No, actually an officer who is retired is receiving retired pay, and by federal law is able to be recalled to active duty at the convenience of the DOD (unless disabled to some degree). That said, I agree with her- in uniform or not. Officers assume an office via an oath, which expires only if they resign or are removed. Retirement is not a disqualifying status change.
Enlisted folks who retire fall off the recall list after five years of retired status.
May vary by service.
Enlisted fall off after their service commitment—8 years total service, initially and then the length of enlistment. They can be extended, but cannot be recalled beyond their inactive service commitment.