I'm not sure if the Walnut St. store has one. That store is much closer to you though, walking distance from Penn, so check that out first. If you have to go to the KOP store, just catch the bus, number 125. It runs from Center City to the mall.
By the way is the KOP is way far away ? i hope you can explain me a little bit about how really far'teh approx cost of taxi etc