I have a 2018 iPad Pro with a cracked screen. If I make an appt at a Genius Bar will apple replace my iPad on the spot with a replacement unit or does it send my unit somewhere to have the screen replaced? I have AppleCare+. I ask this because I know for iPhones Apple will actually replace the screen in a couple hours at the store. I don't think this applies to iPads but not sure if I'll get a replacement right away or have to go without my iPad until my unit is repaired.