Do you toss this coach?

[LMan]

I would suggest stopping the game and finding the TD, and informing him that the game will not resume until the ejected coach has departed sight-and-sound range of the field. Then let the TD earn his pay. The ejected coach can decide if his continued presence is worth a forfeit and the ire of the parents around him who came to see their children play ball, not watch an idiot coach throw an extended hissy.

The AC consulting with the ejected coach, warning then eject. If thats all the adults they have on the bench, then your issue has solved itself.