Every day a horn goes off

I guess it's possible, depending on how hard the squirrel hit the car. Last month I think I might have set one off just by walking past it with a noisy cart. There was nobody else around, and the owner was nowhere in sight when I left the parking lot. I was at least a foot and a half away from it when I passed, too... definitely didn't bump it!

I remember that when we lived at the apartments. I especially hated when those horns would go off in the middle of the night - grrr!! If a squirrel could do it, maybe a cat could too. At one apartment we would find cats and cat paw prints on our cars. Sometimes I do know it has happened during heavy winds!