After some deep thinking on the "driving Kat to work" topic, I am starting to think differently.
I think Kat can drive just fine in the snow. The issue is with the car.
During the Leanna hospital incident, we remember the genuine concern Phil had for his car. Panda was in the emergency room and Phil was more worried about his BMW than his girlfriend. He called and texed her multiple times to make sute it was safe, where was it parked, did she give the keys to her manager, etc.
Phil has talked about the horrors of Connecticut and the snow. He complained about having to "shovel snow off his car". He is unwilling to do this task. He bragged about getting a garage with the Wakondo and never having to "shovel snow" off his car again.
This is already getting too long. To sum it up, Phil took Kat to work so he could get the car back home and in the garage so snow wouldn't get on it.