So, I saw a video on Youtube about using OFF! bug repellent on car headlights and taillights that have that worn foggy residue on it... I really didn't buy that all you did was spray some off on a rag and wipe the lens clean... but I tried it.
See the results below... it worked! Almost immediately.
I used Deep Woods OFF!
Now... I'm going to see how long it lasts...
UPDATE: I'm still waiting to see how it works for me... but this video says folks SHOULDN'T do it: link