I do not care if he does not go. Just do not pay him, give him office space, classroom space, or a parking space. Then if he sticks around, find out how to charge him rent.
Do not give him any space. There are more deserving people for that space.
Do not let him in front of any classroom.
The falsifying of his resume is enough to be fired over. I would be fired if I did it, and so would any of you.
And take away his Red stapler.