I don't know. I always dress neatly for road trips. Figure it helps in case you get pulled over.
One thing I always do is charge anything I can, figrue it leaves a paper trail if I get abducted by aliens or some psycho. Also helps when road tripping abroad. Probably have about 100 dollars in coins from places like Estonia, Latvia, and other places I may never go back to and who don't use real money!
