Slide in plugin not hiding for other page views when close

I clicked the "Closing the message" -> "Hide all messages for the visitor"

** When a visitor closed the slide in, I don't want to show it to them again on other pages.

It isn't working. You can test out here:
http://www.smartrunningmethod.com/roasted-pepper-spinach-lasagna-rolls/

I also have W3 Cache too