In observance of Labor Day in the United States, Epic Games will be closed on Monday, September 5.
I guess they shut down the servers on the way out of the office.
"Holiday Notice
In observance of Labor Day in the United States, Epic Games will be closed on Monday, September 5."
Might be because of this? 
I just tried this again and it looks like the servers are back up. Just in time for the end of the day :(. Currently downloading.
I’m guessing it was a server issue. Looks to be working now! Thanks everyone for posting!