Years ago I blew a tire and struggled for a long time trying to get the second lock mechanism to release while parked at a gas station. I finally found a video with very little views on it where a guy was able to get the tire down as far as he could until the second mechanism stopped it from going any further. He was then able to shove a screwdriver in one of the holes on the side of the locking mechanism and was able to release the lock. I tried the same and it took a while to find the right angle with the screwdriver, but it released no problem when I found it. I always make sure to carry a screwdriver with me now. I think I also had it hosed down with WD40 pretty good too.