If it was learned the Saudis assisted Israel in the attack, the Saudis know that Iran's gonna strike them. The Saudis been down this trail before when Saddam was hitting them with inaccurate scuds during the first gulf war. Only difference is Iran's military capability is far greater than Saddam's was and would cause lots of destruction to the Saudi nation. I could see the Saudis pondering it, but can't see them allowing it as much as they hate Iran, would never happen.
Spain investigating ex-IMF chief Rato for fraud (Reuters)
from the article: Saudi Arabia: We will not give Israel air corridor for Iran strike