That is just awesome. I vividly recall a freezing night we spent on top of that mountain. The view was incredible and the Zodiacal light was visible for a hours as a very bright cone in the west.
It does get lonely up there. After having gazed at the sky for hours we got invited inside by two very funny local guards at the entrance and had some coffee and a good chat. My wife is Peruvian so she kept the conversation going in spanish

They also posed for photos with us and gave us some big posters of the VLT. Then we drove our 4WD back through the desert to Antofagasta in the middle of the night, which was an awesome experience in itself.
I later wrote an email to ESO in order to thank them and was told it had been forwarded to the guards.