Hmmmmmmmm....

Why did you call a balk on the pick off attempt at 1st base? Did the pitcher not step directly to the bag?

Why did you leave the field to get a rule book. I have NEVER done this, nor EVER seen that done in a high school game. Yes, the NCAA allows this, but it is only for the official to look something up in the book.

To not confer with your partner about a misapplied rule, is, well, bad! Ok, he was the UIC, and ultimately, it is his call, but I would have been having a seriously pointed discussion during and after the game about this.