During the overnight hours, Kansas Troopers park on the side of I-35 near this curve (and sometimes a mile or two before it). They will pull you over for anything and don’t cut any slack – fix-it ticket, speeding, failure to signal a lane change. Be aware! If there is anything wrong with your car, like a headlight out, avoid this area because they Will ticket you. I have seen, at times, 3 and 4 troopers waiting there.