Great spot, or I got lucky. Just finished writing a Budapest sign and stood at the ramp, the truck parked there just finished his rest and offered me a lift all the way to Gyor.
Waited over an hour, tried hitching by the road (with a sign) and asking at the gas stations but seemed to only be local traffic. Eventually someone stopped and drove out of their way to drop me along the A13
Arrived and immediately offered tea from a resting truck driver. Sat with him for a bit, then went to hitch with a BUDAPEST sign. Second truck stopped for me, less than five minutes.