As of 11 years ago:
The Apple campus is too big for Cupertino’s 911 system, they don’t have a “map”, if you call it the responders end up in front of IL1. So the fastest way to get a response is to call them and head to the IL1 entrance. The second fastest way is to call campus security and have them escort the responders in.
As far as I know that hasn’t changed, but if it changed in the last two years I wouldn’t know (stopped working there).
So this could have just been the fastest way to the wounded and the paramedics together?