I’m seeing the 6pm showing of Sound of Freedom in a rinky dink town (pop 31,000), and my wife and I got the last 2 tickets. On a Wednesday.
A friend went yesterday and it was also sold out.
Edit: no shenanigans observed. Theatre was comfortable, no fire alarms, no issues at all.
I had the same worry but I felt they did a really good job to not upset the audience in that way. I'm glad I went.