A very bright moving cylinder of glowing white light flying across the the night sky, then hovering in one spot.

It was approximately 8pm last evening, probably a few minutes before.  I was coming home from the grocery store and had opened my trunk to get the groceries.  The sky was beautiful with bright stars shining - no clouds.  
I noticed what I first thought might be an airplane flying very high - it looked like it would be flying over the inner coastal waterway and then out over the ocean - just two blocks away.  It was moving quickly and it looked like a bright moving light in the sky - kind of like a plane with landing lights on - but it was way too high for landing lights.  When I stopped to watch it - curious - it stopped flying and hovered in the sky.  I could see it moving around-at first I thought it was turning to come inland, but it just hovered there - like a boat bobbing in the water.  
I had this very strong negative feeling that I was not supposed to see it and that I should stop looking, so I went into the house.  I unpacked the two bags I'd brought in befor! e I went back out.  When I went to get the rest of my groceries, the bright like just looked like a start in the sky.  I would have never known that it was anything but a very bright star.