Inadvertant Horn - Bus Tossing Rant

[referee99]

CP, the Var officials were wrong (from your OP).
The "under the bus" comments were hearsay. Maybe their language was impolitic, maybe they were jerks -- who knows?

When they told you that you got it wrong, I would hope that you would explain that you got it right.
If you have a coach 'furious' at this call, maybe take a look at your mechanics on the play.

Might want to add a little Kabuki theatre to the action. Calling official blows whistle when ball goes OB. You both know what happens next, but you can help others along with something like:
"Partner, did you have a touch?" maybe some visual touch indication and questioning look.
"No touch... Throw in Violation... Here!"
"Good call!"

if you are in proximity and have a moment, "Coach, that is a throw in violation, we are going back to the spot."