Annoying People at Concerts

The night before last I went to a free outdoor show in Madison Square Park. The concert was Don Byron and his band doing a tribute to Junior Walker. A pleasant summer evening, perfect weather to enjoy a good show. Now my friend and I got to the show early, about ten minutes before the 7 o'clock starting time. We prefer to stand at these shows rather than to sit down so we purposely go to the very back. Now when I go to shows in Rockefeller Park downtown, most people stand so that doesn't seem to be an issue. I noticed at the show in Madison Square Park that most people were sitting rather than standing. Nonetheless, we stood way in the back to be respectful of those who are sitting on their picnic blankets. There were a few other scattered people standing also but not many. Most of those standing were, like us, near the back, not near the stage. Now at 8:10, 8:10!, we hear a very annoying voice behind us. This Gilda Radner looking woman comes up behind us and asks us to move, that she can't see the show. Now I am caught quite off guard by this. I could understand her asking us to move when the show started but waiting until an hour and ten minutes into the show!? Plus the show was wrapping up soon. It was done by 8:30. My friend got heated with her and she was angry but finally scurried off when she realized that we weren't moving. Her nerve irritated me and left a bit of a cloud on what was, otherwise, an excellent evening. I don't think at all that we were out of line and there were plenty of closer places for her to sit where she wouldn't have had her view blocked.