Cruise on?? Hit resume should bring up to 700 or so rpm if not wait till light starts flashing then hit throttle should reset and not shut down..... Or leave tractor brake off with trailer of course
Chocking wheels and not applying brakes, and putting something on throttle to keep he rpm up instead of the cruise button. Park on level ground please and climb on one chock and then put another one behind the wheel then easy onto both of them that way nobody can kick them from under your wheels