We're glad we could help, but as it is you were already approaching the limit of what it is possible to safely accomplish in a two day drive. Once you add the time needed to leave the direct Interstate route through St. Louis to detour to your wife's friend's home, you will have literally no time left for a visit unless you add additional time to your drive down, spend two nights on the road, and arrive in Memphis some time during the third day of this trip.

AZBuck