Aside from two trans failsafe messages i received on back to back days, there are no driveability issues. I just shut off the engine restarted and the warning seems to disappear. I decided to drive it on a two hour road trip (one way) today, the only issue was a whining sound (similar to a childs remote control car, or driving in reverse) that was more prominent as it changed gears. However, this sound went away after restarting engine.

It's currently being monitored by my auto shop, their diagnostics reveal that it's the torque converter and not the trany itself. Either way, i'm weighing several options.