Do you really care who sees you?
Like you I have been driving nude practically since I got my license 45+ years ago.
I do not try to be seen nude but I do not really care is someone happens to notice.
After this many years I have lost count as to how many times I have been seen. In all that time there have only been three times were someone reacted negatively.
In many ways I see nudism like religion. I enjoy my religion (nudism) and I wish I was free to practice it whenever and wherever I like, i.e. all the time. However, I understand that other people do not share my religion, and do not want me to impose my religion on them.
I know how annoying it is when I get stopped in the street, or a Jehovah's Witness comes knocking on my door.
I love the freedom and relaxation I feel when naked, but would hate to think that I've destroyed someone else's freedom or relaxation in the process.