I'm with Kerry, nothing in the Grove City area that I know of. I have never been to the store in Slippery Rock but that would probably be your best bet. Most of the bars in and around thePittsburgh area allow smoking inside, it all of them allow cigars though. But to be able to smoke in the bar, they can only do a fraction of their sales in food (can't remember the percentage). If you happen to go to Slippery Rock and want something to eat, check out North Country Brewery. They have some great food, and they are a brewery so they make all of their own food.
Sorry I couldn't be of a little but more help.