Egregious mis-application of a rule

[justacoach]

Here's the sitch...

HS Varsity game. Fed rules in effect.

OOB throw-in at division line. Thrower retreats straight backwards into open floor space to gain passing angle and avoid defensive pressure. Administering official hits whistle and signals with Travel mechanic.

What recourse does the head coach have to avoid an unwarranted loss of possession?

My first inclination is to request a time out and ask to confer with the officiating team.

What would you folks suggest as the proper protocol to follow?

What are the chances of getting a rectification?

TIA for all relevant replies, rules citations not needed, just looking for advice as to if or how to proceed.