In case you don't get it, the person who ordered the pizza tried to use their order to signal a distress call (read the first letters of the toppings) to the workers, presumably because they were going to be murdered, and calling 911 would've resulted in the oppressor murdering them before help arrived.
Whether they called multiple businesses and/or got help in time remains up to interpretation.
No cap, there actually was a news story about a woman who called 911 and disguised the call as a pizza order.
Link to the video: https://www.youtube.com/watch?v=ZJL_8kNFmTI