Triangular shapes objects hovering

This was in 1986.  It was so long ago, but I never knew you could report it.  There were other times and they were different than this.  My sister an d8 were driving back from the supermarket in Jackson NJ.  As we were coming home, I noticed an object in the sky moving and there were 3.  It looked like it was following us.  
We got home and the 3 objects stopped moving.  They sat high up in the sky for a long time.  They were triangular shaped and they sat far apart, but in a triangular formation.  They had lights on them.  If you could draw in the sky and connect the dots, you could make a triangle.  We watched them and were freaked out.  
Then they started moving after maybe 20 minutes to a half hour.  It was so long ago, I’m not sure.  They then moved at the same time and made another triangle formation. It was so creepy, because how can something just hover in the sky.  How can something just sit in the sky.  Anyway, it took about an hour or so totally  leave the area.