If I were Ole Miss, it would be my considered opinion that Kiffin has crossed the Rubicon.

There is no way you could accept him back as the head coach and leader of a team and community that has given him everything. His willingness to engage in this open process of vetting his next team, including family visits, during his program’s run for a National Championship, is unforgivable.
I don’t know how Ole Miss could accept him back at this point.