We are directed to have game management put down the boxes if they are not marked.
A couple of years ago it so happened that the coach was the AD/game management. I notified him about the boxes and he handed ME a roll of tape.
I immediately walked over and handed the tape to the visting coach and said, "Coach please use this to mark your coach's box for tonight."
It took about 30 seconds before the home coach put down BOTH boxes.
If the home team does not do it, the visiting team should be allowed to put down the temporary box. If the home coach then has to sit, it is their own fault.