He'll be at Steel City Collectibles from 7 p.m. - 9 p.m.
You'll have to purchase an autograph ticket, from what I understand. Nothing was provided in the email I received that indicated how much said ticket would cost, which makes me slightly wary. Contact Steel City Collectibles if you want specifics.
This blog does not do advertising, and I received nothing for posting this notice. In fact, I normally ignore most of these types of things. In this case, Mark is one of my favorite Penguins, and anyone that just had surgery could use some cheer.