In 2009 I left about 4-5am on sunday and there was essentially no delay getting onto the highway. (unless you count the 5mph speed limit a delay) I didn't try that last year though, so not sure if it was just a fluke.
Yeah, 4-5am is an excellent time to leave, any day. I did that once, with no waiting other than the 5 mph crawl to gate, but I can't remember how long ago . . . it was 2008 or earlier. When I started attending, the city was less than half the population it is now.
Cookie, I've seen Gerlach to Reno quoted at 2 hrs at least a dozen times. You can Google map it.
A 3 hour exodus is very typical Sunday or
Monday. 2 hours is possible, but with the record attendance expected, I wouldn't count on it. If you leave between 2am-5am, you might get lucky.
It sounds like it's not life or death for you, so maybe you should just wing it and see.