Get the steering wheel replaced under warranty. I had by far, more insiginficant, minor damage on my steering wheel, 2 deep scratches (caused by the workman at dealership during a service) they replaced my steering wheel no questions asked. I know mine was caused by the dealership and different scenario to yours. But I could not look at the wheel and see defects on it. If it were me I would take it in and get replaced on warranty. All they will do is pop the air bang section out of the centre of the wheel and then replace the rim of the steering wheel itself and finally plug in two cables and pop the air bag back in. I was concerned the dealership was not going to get the wheel aligned onced fitted but it is spot on and perfectly horizontal.
