If you can spot it,

not sure

I believe this is a photo from the Columbo episode "Uneasy Lies the Crown" (1990). I think it's the scene where Columbo takes his red light out to put on top of his car and doesn't know how to get it to work. He also mentions to the incredulous people parked behind him that he's been on the force for 22 years.

Yes, correct scene, but look at the trees, growing diagonally instead of vertically!

Ah, I see what you mean!

More to the point, why would would one of those magnetic red lights stay on top of a convertible?