I Have Changed Clothes In the Car
For awhile I was doing this pretty regularly -- I would get up in the morning and get dressed like I was going out for the evening, from the tips of my pumps to the top of my wig (but without makeup). I'd walk out to my car and make the 40 minute drive to work and shortly before I arrived I would usually change while I was driving or sometimes I would park and then change into my work clothes.
I'm not sure why I stopped doing this but I haven't done it in a long time. Changing while driving isn't the safest thing in the world to do anyway, especially with pantyhose!