I live in a very secluded area and hardly don't see any cars until I go into a city near us. I am always naked at home, I would go places without putting on, my friend's,.family's and sister in law house. I am very comfortable doing this. Even if I have to get gas, the station is always empty. If I live in a more busier area, I would worry. I see guys and women naked drive around too sometimes. My sister in law neighbor walked out to get her mail naked, then got in her car and drove off. It must be the constant heat here.
In summer of '05 and '06 I was in western NY and spent every weekend at a nude resort located out in the rural areas... beautiful countryside! There were several couples who often arrived nude or partly nude and departed at the end of the day the same way. Eventually I asked, and was told that in the state of New York it had been tested in court and the state had decided that being nude inside your car is not illegal. I drove two hours each time to travel there and I never had the courage to try it.
its stupid to think that its illegal, maybe too many perverts thats true... or the concept of being naked is too sexualized in our society, but our ancestors and all of the other animals were and are naked, and why people are so offended by their own anatomy?