4or5Magicians said
It's somewhat surprising that their plan for the concert is such a mystery, considering peoples' ardent fascination with every minute detail of everything The Beatles ever did. Since they were recording for the album, I wonder if they may have planned on taking a break to warm up, then doing another set at some point. Or if they even considered the police breaking the performance up in the first place.
That's an interesting thing to ponder for they did almost look to be expecting them. They just opened up the front door and seemed to say, "Oh, ...