I have two 8ft double floresent lights on the ceiling on top of the car directly. What happened is that my 10 years old brother was playing around with a ballon football and hoooops, he hit one of the lights ( they were uncovered to get more light from), and it felt directly over the car ( not the hood nor the roof..). It made a line of scratches deep to the metal about 60 cm .
the car was 2-3 months old only ( toyota camry 2000). until now I did not fix that scratches, only filled them with paint chip repair ( I hate to see my car going to a workshop and never tell you that I will lose the original paint also).
I guess the light was not installed properly, so becareful not to happen to you. And also for loss prevention, I moved the lights to another place away from the car surface but still on the ceiling.
Yesterday I installed a new floresent light instead of the broken one and this day I saw your post.
Thanks.