I wonder if they could spare a couple of missles...one for Mecca and one for Medina.
If most of Israel's population centers are destroyed in a nuclear attack, I wouldn't bet against them launching a massive strike against all of their Arab neighbors (particularly the hostile ones) to give their survivors enough time to gather together to hold off the ground attacks.
It is my understanding Israel has made it known those two are most definitely on their "to do" list.