So, someone broke into the Toyota, with an 8 right next to it? Doubtful.
Also he's an *** for putting up that foil crap in his windshield. That attracts thieves like flies to a pile of S*** (if he's not lying, which he is).
Regardless of all this, you have proof that his car caused the damage, you should have filed a report immediately, which could be detrimental to your case, but otherwise, his insurance should cover it.