I was on the motorway when it left the car. I know when it occurred but I didn't think at that time that it was the roof panel leaving. Only when I got out at my destination did it click. For information I did let the police know.
I have had my car on the road for 4 months now using it daily. I didn’t fit the roof screws (over a year ago?) as I was planning to do more work under there and also adjust the torsion bars.
I would envisage after some morning rush hour motorway traffic running over it, it will be past tense and well ironed.
Anyhow I thought it was the number plate that is supposed to fall off