PU was basically 3BL extended, seemingly facing towards the approaching coach.
No stop sign.
All action on the field had stopped for several seconds, as coach was approaching; AND some of the defense, and remaining runners, started leaving the field thinking the inning was over.
It was when coach was about 4 ft from PU when I heard the OC call out to R2 "He never called TIME, GO!"
Afterwards, PU said that he never acknowledged the coach and was still watching the play, or lack thereof. Without the coach distraction, there is no way any runners would have tried anything.
To me, it looked like he was committed to the coach.
P.S. this happened at 10PM, 5th game of the day. Not sure if everyone's brain cells were totally functioning at optimal strength at the time.
It is possible that we both missed a LBR violation.