Women's A Game Situation

[argodad]

Situation from the ASA Women’s A Fast Nationals.

Bottom of the 8th, score tied, R1 on 3B, two outs. As the pitcher begins her motion, batter yells “Time Blue!” Time is not granted, but pitcher stops her motion and steps off the front of the rubber. PU calls illegal pitch and sends the winning run home. If you are on one of the bases (3-umpire system), what would you do?.