I think that (and no, this has nothing to do with my personal issues with this...ahem), I don't know that it's necessary to raid this.
Yes, it's LRH books, but it's not a COS class or a COS meeting or anything like that...it's not even Scientology books, it's his pulp-fiction stuff. We're protesting COS, right? Then why do we need to protest a live reading of a bunch of pulp-fiction books? Unless you're just looking to split hairs and protest because it's related to LRH and is being held in a Scientology owned building and the money spent on tickets will return to COS, but I, again, think protesting something like this might send the wrong message.

I thought we were protesting the abuses of the organization, not the existence of it completely.
It's like having an arguement about the movie Big Fish and you're talking about characters and plot development, and then someone decides to start talking about Edward Scissorhands and you're like "dude, that's not even the same movie, just the same director".
It's not like they're trying to hide it that it's Scientology related...all the propaganda clearly states BY L. RON HUBBARD is big bold letters all over it...and many many people, especially the older people who are into pulpfiction and the Golden Age stories, are well aware of who L Ron Hubbard is.
And for the record, this is not a singular event, so don't expect it to be a ~*huge fabulous*~ event for them. They're doing these readings every weekend through December with a different book and cast each week.
http://http://www.goldenagestories.com/html/theater.php