Tetris-like Football Goal

Rt 7 South from Rutland to Wallingford.  I noticed a strobing dim, though expansive white light in the sky toward the airport.  I thought nothing of it, assuming it was some form of aviation guidance.  Then a figure appeared in the sky in front of me near Wallingford.  It was like a hologram or silhouette.  Its form reminded me of a football goal, but narrow.  It had sections like a Tetris tile . The object was not moving and was only visible for what seemed like seconds.  However, my average 15 minute drive home had become a 30 minute drive.