Talked to a friend who's a driver for both Lyft and Uber; he said it was a cluster. He went to check out the holding area, and it was just a sea of Lyft drivers hanging out; supposedly when their GPS says they're in the LAX geofence, they get added to a queue, and they basically hope they get a long-distance trip to make it worth it. Pretty much like a taxi rank/pen, just with personal cars and pink mustaches.

He left.