I did it a few times this year to dodge projected blizzards. I sent a message from the shop, said that I hoped it was OK, and went out and did the shop. Luckily the scheduler in question was in Boston. I think they got the record for this year, topping out at over 100 inches.
I am not going to fight with snow for this type of money. Another shop wound up being later than I had projected. Our road are torn up and completely pothole laden. It got dark, I couldn't see the potholes well enough to dodge them and was on a road with a fairly high speed limit. I was starting to get shaky as I drove. I came home, sent a message, called the next day and did the shop while it was daylight.
Everyone was very understanding.