"You can't call that

[Nevadaref]

Not sure that I am one of those important people here, but I don't have a problem with what you did. You gave the warning for delay the first time and the kid was still silly enough to do it again! The coach knew it and didn't make sure that his player didn't repeat his violation?!?
Sounds like you didn't penalize them for only an inch either. They certainly can't say that they didn't have fair warning.
They need accept the consequences like men.
As for your partner's intentional foul call, I can't comment. I would have needed to be there and see the play.

PS Look at the bright side, at least you got to inbound OPPOSITE the table after the last 2 FTs!