Betcha there were some false radar signals. From Bedouins.
No more Bedouins in the area any more. Saudi Arabia gathered them up some 50 years ago...coaxed them into apartments and multi-level homes...big enough for a few of their famous black tailed sheep.
https://en.wikipedia.org/wiki/Fat-tailed_sheep
Saudi families occasionally "go Bedouin" out in the desert but they are always "camped" near water and telecommunications...with their Mitsubishis pick-ups parked out in front.
Camels are raised still for camel races and such. Only the females are kept. The males are too obstreperous.