This is really quite laughable! What kind of adversary, that would elicit the deployment of these types of resources, would have their critical security infrastructure connected via wifi??
They're probably close to being able to do pretty advanced real-time visualization using wifi. Several articles describing the techniques have been posted numerous times on hn. This could be the first step necessary to having basically a wallhack from counter-strike.
Probably the FBI, going by recent reports of their sloppiness? ;)