Events+ Member Only URL Group

So I thought I was being fabulous and going to create some member only events using the events+ plugin however, I think I am not clear on this URL Group concept with regular expressions

I put this URL –> in a group labeled members only

I created an event category "members-only". I put this URL Group as a "negative rule" with the visitor access to the site. However when I go visit the site from another browser where I am not logged in, I can still see the events listed.

What am I missing here?

multisite – 3.3.2