Wow, if they were contacting via social media that day they had to be young. Wouldn't most adults know any and everything done electronically can and will be found, coded or not?
They could have the ego that there invisable and no one would catch them. Most everyone also knows cameras are everywhere and that didn't stop them either. I think they are probably between the ages 20-28 by the pictures. I think the one in the khaki pants was trying to hard to change his image with the attire etc. Maybe it's because the sunglasses and the hat with the visor not sure but it looks odd compared to his friend.