Strange Hovering Light - Noticed and Approached Us

This is a while back but I remember it quite well. 
Back in 2005 my sister was driving home from some late night dinner with my mother and as we drove down our street I saw a light at the end of the street over a house just above the trees about two feet above. I automatically assumed that it was a airplane flying low at night and the perspective was throwing off the actual height. So my sister stopped to get the mail at the bottom of our 150 ft driveway. I stared and then noticed the light was not moving. Just as a mentioned this to my mother and sister the light began to zip smoothly towards us. My sister did not pull up the driveway, but my mother began to panic and said to get up the driveway. My heart began to race since this light as now apparently only 2 feet above the treeline! As we pulled in the garage I looked overhead and saw the light skirt over the tops of the trees and then we were in the garage. As I ran inside to look out the windows, the object had left and that was the end of the excitement. To date my mother doesn't talk about it because she doesn't want people to think she is crazy.
Witness indicates that the date of the sighting is approximate.  PD