Was checking the ADS-B Exchange like a few guys here, I saw this TEST1234 popped up and then went off when I clicked it... hex id ends with ADF992 (altitude 150 ft?!)
WWG1WGA Drops will go fast. WH clean SIG. Marker. Everything is planned. Years. Message. UNITY. AWAKENING. We Fight. Lexington. Concord. STAY TOGETHER. Q
Hmmm... Battles of Lexington and Concord ?
edit: sorry, a truck as other posted.
Did you check the helicopter type? Could have been a medical flight out in/out of the Lexington medical.