2 rules i ran into this weekend

[IAUMP]

I will say this first, baseball is not my #1 sport, actually more like #3. However, I give it my be effort every time I am on the field. I have never done things like you mention other "Little League" umpires have done and I have worked many Regional All Star games in my 5 years of Umpiring. Here is a situation I had last night in a 9/10 yr old game. Bottom of 1st lead off batter is very short. Pitch crosses the outside corner at the knee. I call strike, and the home HC grumbles from in front of the dugout. After the batter struck out, the HC states loudly to the batter "that's ok the Ump owes you one". I let the HC know that I am not going to listen to those types of comments all game. I start to return to the plate and he mouths off more, so I instruct him to get into the dug out. HC then states "so you are going to boss me around because I argued one G-D call. He was then removed from the game and area. Best part was I didn't have to report this as the Pres. of the leagues son is on the HC team and the Pres heard it all.

Did I do right or would you say this was done by a "Little League Ump"?