California couple camps in the desert. Together they spend the night terrified by thousands of bug-eyed gray aliens who swoop down from the night sky and peer into their pickup camper at them. In the light of morning the aliens are gone and they drive home. Hmmmm. Perhaps someone testing new holographic technology had a nice laugh at their expense. My advice would have been to step outside and try to start a conversation - a hologram can't respond. Toss it a ball - if it bounces off it is physical, if it passes through it's a holographic image.