I witnessed what appeared to be a flying disk hovering and what appeared to be a projectile fired at it.

I was by myself sitting at a traffic light while exiting southbound Interstate 95 onto State Road 16. While sitting at the red light I looked up and to my left. I saw a circular light hovering in the sky. It was a picture perfect day with no clouds. Whatever it was it was, it off in the distance, so it was hard to tell what exactly I was seeing. I snapped a pic while sitting at the light, simply to look at it later. The traffic light turned green and I started to turn left. At that moment, I saw something moving fast with a thick contrail coming from the ground from west to east toward it. I instantly thought it was a missile. Then my vision was obstructed for a few moments while driving. When the obstruction cleared, it was a sign as memory serves, I pulled over and took the additional picture and whatever it the light was, it was gone. All that was left was the remnants of the contrail. I filed a FOIA request for radar returns for the Saint Augustine airport for the time of the incident. The airport is approximately five miles away. I got the runaround. I kept getting asked why I wanted it. The last thing I wanted was to tell the U.S. government what I had seen. I let it die there. I'm only coming forward now, because I stumbled across the pic in my PC while rearranging picture folders. I hold a FAA Commercial certificate, but haven't flown in 20 years do to health issues. I never flew airline aircraft, but owned a flight school for several years. I had never seen anything like this in all my years of watching and being in the sky.