My 2cents, USAC did not suspend Robert on their own. Tony got hot, and pushed his weight around (and money) and most likely wanted it done. What if he tells USAC that he would never schedule another race at his track? He probably has pull at other tracks too, because he schedules his all stars at them, so could really have an effect on USAC scheduling. If Tony wants him suspended, I bet USAC would bend.