Sheer lunacy! IIRC, a decade or so ago, there were trials with F/A-18s to check the feasibility of saving fuel by flying in close formation. It turned out that formation that yielded significant savings was too close to be maintained comfortably during cruise. So there was an attempt to create close-formation-holding-autopilot, but it went nowhere.
Let's shortlist these fellows for IgNobel.