Witness encountered bright white light that approached her car from the left and then zipped to the right

Witness was on her way home from work and when approaching the first marker (on the map), got a clear view of a bright, white light over to her left. (See the Black Star on Annotated Map.) Object was previously obscured by trees, but as her vehicle made the turn around the bend in the road, it came into view.  She had not seen or known about it before getting to that spot.  It was moving slowly in an angle to the right but coming towards her.  It appeared to be moving slow and in her general direction.  The flight path seemed to be more or less level in flight, neither ascending or decending.  When she drove further down the road to where the second marker is on the map, that's when it immediately zipped off to the right and disappeared. (See the Black Star on the Annotated Map.)  It was a very quick maneuver that didn't go up or down from there..just off to the right in her field of view.  The other strange part about this was that when it shot off to the right, i! t seemed to disappear while in full view, just kind of winked out.  There were no trees in the way or anything obscuring the view when that happened.  She slowed down and began trying to see if she could find it again but to no avail.  When she continued down the road to the third marker on the map, she saw a helicopter (marked as a blue star) which she thought might be lifeflight as they fly up from Nashville and often take people to the hospital down there.  It had more than just the white lights so she knew it was something normal. At this point, she was about to tum off of 101st when she called her husband to tell him to check his MADAR unit. The phone call was made at 9:33 pm.  She was only a minute or two away from the house when she made that call. (Residence is indicated using a Red Star on the Annotated Map.)