Wikipedia says, "The phrase E ticket (or E ticket ride) refers to an unusually interesting, thrilling, or expensive experience. It derives from the admission ticket system used at the Disneyland and Magic Kingdom theme parks before 1982, where the E ticket (officially termed "E coupon") admitted the bearer to the newest, most advanced, and/or most popular rides and attractions."
So I say, thanks, Wikipedia, for explaining what the hell this song is supposed to mean:
Trying to figure out and see what you perceive Rationalize inhumane idiosyncrasies The notion that our national devotion is of freedom, laughably a lie Insidious god-given right to commodify human life But you don't wanna hear it We can tell by the way you tune it out