If you compare the location of the video to the original picture that was circulating, it shows that these girls stayed on top of the car from Dbayyeh to Jounieh at least. I would recommend whomever owns that Mercedes to sell it and buy a Chevy Avalanche, turn the back of the truck into a small pool and voila!

Update: The Lebanese police apparently stopped the car on the highway in Jounieh and asked the girls to go down and get dressed. They later investigated with the driver and his friend and then released them.