I got there at 10:30 this morning (Wednesday) after rushing early in the morning for another show, looking for a matinee rush ticket. They still had tickets available and I got full view orchestra tickets, J14.
ChristianPisco said: "Just got out of the rush line. I got there at 3am and was 6th in line. They had a total of 12 tickets available (I think they were split evenly between matinee and evening). Luckily, I was able to get 3 tickets for the evening performance! I recommend going around 2 or 3 am to make sure you can definitely get tickets. The line was over 50 people long by the time the box office opened but only about the first 10 people were able to get anything. Best of luck!