SPRINGFIELD — Before deciding the validity of Christopher Geiler’s speeding ticket, the state’s high court had to give him credit.“We note that defendant, appearing pro se, performed well in presenting his argument, both in his brief to this court and in his oral argument,” Justice Thomas L. Kilbride wrote for the majority.The court may have felt the praise was warranted because the feat is rare. The high court clerk’s office earlier this year estimated Geiler was just the fourth person …