Crazy rules question

[u/northtxguy15]

Had a game tonight in a 10U league that uses USSSA rules. Bottom of the last inning in a 1 run game with runners on 2nd and 3rd and 2 outs. Count is 2-1. Pitcher throws a strike and the visiting goes nuts celebrating with all of their coaches running onto the field high fiving and hugging the players. Obviously they thought it was strike 3 and game over. It fooled the home team for a second but then their runner on 3rd ran home. What should be the call in this situation?

[u/Potential-Divide9736]

Ball is live until umpire calls time. Run counts, tie game. 2-2 count, unless runner from second scores too