Delivery on the day and pickup the next morning
The form says units are delivered on the day of the event and removed by the following morning. The window is a permit condition, and the plan keeps to it.
Delivery is set for the day of the event, early enough that the units are placed and checked before the crowd arrives. A late delivery is a failure of the permit condition as well as of the service.
Pickup is no later than the following morning. A unit left in a park overnight after that window breaches the form, so the crew collects the units on the first morning slot.
The delivery and pickup times are written on the order and given to the organizer, so the park's use is kept inside the form's terms.
Servicing a park event on a short window
A park event runs for a few hours, so the servicing is short and timed to the peak. A visit is made before the gates open, during the busiest stretch and at the close.
The first visit makes the units clean and stocked before the first guest. The crew checks the doors, the latches and the level before the event opens.
A visit in the busiest stretch services the units most used, and the crew is kept clear of the event's activity while doing it.
A final check after the close makes sure the units are fit to be collected the next morning, and that nothing has been left behind on the grounds.