Research shows that wearing your mask, and opening the front passenger window, and the window behind the driver seat helps to reduce the spread of the novel coronavirus in your vehicle. See this NY Times article.
I am scheduled to teach at a music facility 2 afternoons a week in Clarksville, TN I live in Hopkinsville, KY and I don't have access to a car. My husband will mostly be able to bring me home as he is working in that area as well. I am in the process of setting up this schedule. The days are Tuesdays and Wednesdays. The time will be about 3:15 PM. That's all I know right now.