Sparky I think I would just pack it up and move it to the storage locker. Or text and tell him to come pick up his stuff. I think that is the acceptable response. But admittedly if it were me, I would wait till the last minute and just shuffle it to the corner.
Me 41 W 33 M 2013 Suspect A 11/15 Confirm A 1/16 She moved out 2/14/16 Stepson 13 Stepson 16