When the SCCA looked at it, they saw a slot car track advertising "Auto World" (his mail order company)
He replied "That isn't advertising, that's racing stripes" and then he went back to racing.
This is the same guy who was 2nd in the Cannonball Run with the Chevy van loaded with 5 drums of 130 octane racing gas
http://www.slotcarillustrated.com/index.php?categoryid=41&p2_articleid=87