Well I have good news and bad news.
1st the good news. Tesla pinged me asking if they could come out today, and they did.
Mobile service was awesome and got to my house at 8 am this morning.
2nd the bad news. Mobile ended up making sure there was no issue with my car, by first fully power cycling it.
After that they said - yup need to change out the card. They end up pulling it out and replacing the communication card.
They plugged in their laptop into the car, but unfortunately after working on the car for over an hour trying to get the new board to connect to cellular he had to give up. He believes they will need to swap out our HW3 computer entirely and will have to do that through the service center.
He will be making his report, and said that Tesla Service should be contacting me later today to make an appointee to have that done.
So bummer - will have to make another appointment to swap out our HW3 computer.
squash1978, I hope yours goes better than mine.