A giant quadreped that appears to be made of flesh invades Al-Masjid al-Haram, assimilating everyone in the area. It then reshapes itself into a carpet of flesh to cover the area, and an entire orchestra of instruments arise from it, and starts playing German classical music. What can the Saudi government do? Bonus points: How do you imitate the brass section using only organic (not in the sense of carbon, but organisms) materials? Bonus Bonus points: What do the Saudis do when they see it approaching?
What about any other government do; prepare its fight jets and assault that unholy monstrosity when they see it approaching. It would also signal the end of the world for all the Muslims.
Love the story premise, @Elhanan. Welcome to the forum. Looks to me like the answer is, whatever you choose to make the reaction be.