Can I test App in Apple store

I found an iOS 8 bug and that bug doesn't allow me to test mediation between ads. I know it's not an issue with my code because everything works fine with iOS 7 simulators and devices and iOS 8 devices work. But on iOS 8 simulator it doesn't work. Problem is, I don't have an iPhone 6 and iPhone 6+ device and don't know anyone who does. The test of device takes about 10 minutes and has no negative affects on device. Would I be allowed to hook up my Apple MacBook to the iPhone 6 in the Apple Store to test my app?