I'm not saying it's impossible for shrooms to contribute to this but, if he was on shrooms, it is almost certain that's not the only thing he was on. Very few people have the coordination or motivation to punch mirrors off cars when they're hallucinating. In fact, if you are able to do that, you're either not hallucinating or you might have mild hallucinations mixed with another drug/s that's the primary cause of a freak-out like that.
And I don't think posting stuff like this with "have fun" is productive, because it implies that this is what the average shroom experience is like, which is ridiculous.