Tell your wife congratulations on the new job from the folks at Jerry! As for visiting family down south, the trip is still well within driving distance, but it will take the better part of a day.
Trying to put a definite travel time on a long trip can be difficult because a single problem, like severe thunderstorms, can set you back by a lot. Be sure to take these factors into account before hitting the road. Additionally, be sure that your vehicle is properly insured to fully protect you and your wife.