A couple of years ago, I witnessed a 2am launch in the middle of the summer. It was the launch of the Chandra X-ray telescope. The publicity was crazy and the number of people present was amazing.. There were so many people present that it was daylight when we got back to our hotel. We did that 3 nights in a row as the launch was scrubbed the first two times.
Watch out for the alligators.. NASA puts you on a long strip of land that is about 25-30ft from the waters edge and like 3mi from the pad. Everynight, there were alligators swimming back and forth keeping an eye on us all.