I'm not on a crusade with this. But maybe they are building evidence to obtain a warrant. A judge won't sign off on a warrant on the say of a guard alone. There could be a bigger picture in this and maybe the guards are building to something. If the end result is to the benefit of certain girls then I'm all for that.
Gullible idiots, really. Cute enough to buy a burner, sneak off from the wife and park a distance away and scan the area. Those are not the actions of gullible people.
It's not an illegal interview. It's note taking. Nobody made them speak. They spoke willingly.