would take a couple of hours to get organized
then someone would mess up or bring a nude skin to troll, causing another hour of confusion
After re-arranging the setup, and people probably getting out of line and shit, that's at least another hour or so
Finally, the majority of people will have left by this point.
So, the remaining people are probably AFK or checking to see if the photo's on every 15 minutes.
At that moment, the staff will not have enough time because it has been hours, and it is not yet a holiday/free day of any sort.
Even if it were christmas, people go on vacations and have human desires to take care of.
Best wishes,
Drupe