Okay, so this will hopefully be my last update on this issue...
I got my car back from the Service Center error free, but not before some drama.
When I dropped scheduled my appointment, I tried to make it abundantly clear that I had already replaced the 5-way actuator and that ALL i needed them to do was to run the calibration command. I reiterated this as I dropped off the car and I even made note of it in the service chat in the app.... Later that evening, I get a notification from in the app that they have updated my quote... It had gone from $97 for a general diagnostic fee to over $400 with diagnostics (which ballooned to $190 for some reason), cost to remove and replace the actuator and the cost of the actuator itself!
I wrote in the chat "I hope you didn't just replace the actuator because its brand new!"
Well... I woke up this morning, drove to the service center and was prepared for a fight.... Much to my relief, however, I spoke with the supervisor and explained that I had already replaced the actuator. He kindly apologized and restored my quote to the previous $97 estimate. A few hours later, they had everything done, I paid my $97 invoice, and I went on my merry way without any active error messages. You can also see in the attached image that the car now also passes the Thermal System Test.
I will certainly update you all if the fault shows back up.