It's rude to stay in a store past closing.
Sandy is in the grocery store shopping and it will be closing in a short time.
Sandy wants to grab a few items she needs to use for dinner.
Sandy hustles through the store getting what she needs just before the close time.
Sandy spends time browsing around before checking out her items soon after the store was meant to close.
The employees are pleased that she was mindful enough to leave on time.
The store employees have to stay a little bit extra past their shift end.