JEFFERSON — Despite the number of years that Dan Elliott has been involved in racing, he’d never before seen what caught his eye Thursday as he drove through the infield of Gresham Motorsports Park in Jefferson. Elliott, the track’s general manager, looked out of his truck window to the right only to see drag racer John Coughlin taking advantage of the warm spring weather by riding his skateboard down the bottom of the straightaway. Coughlin was on hand as his teenage son, Cody, was testing at the track.