North Carolina's inspectors, like in some other states, have been a bit inconsistent in the past. A crack that should fail, will pass at one station, while it fails at all others. Trying to find a definition online of whether it would fail, is a pain, but the general idea is whether it obscures vision, or whether it is an area that the wipers hit. It also depends greatly on severity of crack or hole. Your best option would be take a picture of it and show it to an inspector or an officer and ask. A picture is better because then they can't throw a "fix-it ticket" on your vehicle right then and there and you could always say it's for a buddy or say, "boy am I glad I fixed that". Unfortunately, without asking the inspector that would be inspecting your vehicle and showing them what it looks like, you'll still be a bit uncertain when you go to get inspected.