Low flying Large triangle Silent craft over suburbs of Large City

Slow moving VERY large SILENT Black Triangle (slightly boomerang shaped)...backend curved in, no sharp corners with line of  small white lights in a row on rear of ship.  
Seen over a busy highway, at 9:30 PM, low altitude-less than 500ft??? 
I pulled of the side of the road to watch and rolled down the window to make sure I wasn't seeing reflections or whatever.  
I don't know if anyone else reported it, nothing on the news.  
There is Hancock military airbase nearby and  commercial Hancock Airport located next to each other, probably within 7 miles of the sighting.  I had never heard of the triangle sightings or anything similar-so I was really stumped.  
I am reporting this now because I want to add my 2 cents in for the record.   Haven't seen anything unidentified before or since.  I am a broker for an Investment Company sell stocks, bond, and Mutual funds,etc.
Witness indicates that the date of the incident is approximate.  PD