Patrolman sitting in median facing oncoming. Picked me out in left lane, although, cars passing me on right & I was waiting for traffic to break so I could merge over. I was the only out-of-state vehicle I saw at the time. Patrolman wrote me up for going 71 in 60. My speedometer said 65 at the time he would have clocked me if it was me he clocked. I asked to see the radar, which did show 71, but could have come from another vehicle. The officer was unable to tell me when his gun had been calibrated last, Just snickered, said whenever it’s supposed to be & have my attorney get the records.