I suggested this approach somewhere on page 17 of that thread. In fact your research is correct, as is your assessment of the interest in this sort of violation by Federal authorities.
To assert the claim and start an investigation the Tony's 7 (only they have standing) must contact either FBI headquarters or the Washington Field Office and report the offense. They will have to complete an official complaint including signed sworn statements and they should provide as much supporting evidence as they can. It would be best if their Lawyer assisted in this.
Once the complaint is in the hopper the case may take a few days/weeks to be assigned and float to the top in someone's "in" box, or it could generate a lot of instant interest.