Three intensely bright red cirlcles in a triangular formation travelling in tanden as seemingly high speed

I was heading west, toward the mainland, from coastal Atlantic City with my boss in an auto, crossing several low causeways over water, when we noticed 3 intensely bright lights in the sky in a triangular formation. We pulled over, observed the three objects moving rapidly in tandem. The travelled quickly from area to area, always moving as one. This went on for close to 10 mins and they suddenly vanished from sight. Upon arriving at my bosses house, I called the local commercial airport and asked if they'd received reports or had any unusual objects in the sky from a neighboring air facility known as NAFAC. They told me that they had in fact received reports of what I had seen earlier and also told me that they knew of no projects that NAFAC was involved with. This is the one and only time that I've seen phenomena of this type.
Date may be approximate, although the witness does not indicate that fact.  PD