I just noticed that my side mirror fell off. Not the whole thing - just the mirror. I'm thinking it might have been pried off by someone. But maybe it fell off and I just didn't notice for a day. Are they expensive? I just bought the car 2 months ago, would that be covered under warranty? I'm going to tell Mazda that it fell off - they can't prove it was stolen or anything....I just don't know what happened to it. Any thoughts?