I checked out the website and it said it was not closed due to the gov shutdown. Drove in and stopped at a visitor center along The way to inquire further and they said the park is closed. They also said that perhaps the webmaster for the site is furloughed as well. I never gave that one a thought.
Whelp, the visitor center had the correct skinny. The site truly is closed, but cars still queued up to be told that.
The Big World 