I just wanted to let everyone know that my parents made it home safe and sound. They said that the only weather they ran into was some snow flurries that didn't even stick to the ground. They also said that they actually preferred the new route because it's mostly interstate driving whereas the other route has quite a bit of surface road driving which, while shorter, takes more time. C and I plan on trying out their route next time we drive to Ohio.
Anyway, thanks so much for the comments and concern. I really appreciated it and it was nice knowing so many people cared.