I believe Opryland had a bunch of sponsorships like that - Rainbow Bread on the train, for example. At least Disney's seem to make sense for each attraction. Electricity in the Ozarks would be a stretch though.
I find a little hypocrisy that a Herschend led the way to rid Missouri of billboards a few years ago (It would be nicer without them.), but would want to cheapen his own park with advertising. Not that I don't understand the profit line for such a thing, but people pay extra to get advertising removed from electronic and broadcasting services, but ticket prices to theme parks keep rising regardless.
To change the subject - I'd be impressed if the Timothy Turnbuckle time machine showed up somewhere or if there was a Turnbuckle reference somewhere in the new queue.