Not sure if this has been commented on or if it was seen on TV. When Armstrong returned to the field the big screen at The Shoe showed him from behind jogging through the entry way tunnel. Your couldn't tell who it was. Then the camera angle flipped and it announced who he was as he jogged across the field.
I thought this was odd since he wasn't a Buckeye, past or present. It reminded me of the WCW/WWE Bill Goldberg entrances a little bit.
Also, Buckeye fans were a class act with Armstrong last night.