Finally the temp is cool enough that I tested the pre-conditioning this morning (110V outlet).
I only have Level 1 charging as Level 2 is way too expensive for my house. I unplugged the charge cable about 25 minutes before I was going to leave as I took the garbage out this morning. I left the garage door open afterwards since I don't want to close and then open again in 20 minutes so the garage temp is around 8C (46F), inside car temp probably a few degrees warmer. About 10 minutes before I leave, I thought about pre-conditioning so I plug the charger back in, the green LED is off since the car is fully charged. I use the HondaLink app to turn on pre-conditioning, about 30 seconds later, I hear some noise inside the car, then both the green LED turns on at the car charge port and the charger cable box. About 10 minutes later, I unplugged the Level 1 charger, open the car door and the inside is warm, amazing.
This is my first car with climate pre-conditioning so I am actually looking forward to the winter where I won't have to stay frozen for 10 minutes waiting for the ICE to warm up the car and then me...