From 11:00PM PDT on Friday, July 1 until 5:00AM PDT on Saturday, July 2, the Shmoop engineering elves will be making tweaks and improvements to the site. That means Shmoop will be unavailable for use during that time. Thanks for your patience!
Alex contrasts night and darkness with day and lightness. Day and lightness are for the "starry folks." Patrol cars are more abundant on the streets and security is ensured. There is nowhere to hide where sun and light are present, as in the case of the holding cell and interrogation room. Alex feels extremely exposed and vulnerable in the day and in lightness. These are not his elements.