Not to worry, Ali is safe in his new spot as of half an hour ago. After his long radio silence, I passed by the spot and found the same sign that Bierfahrt showed us. Only on the way out did I spot the correct one, which it seems you found a couple hours later. This one shouldn't be too hard. Right off a popular commuter cut-through in Clifton, you'll pass a park with a few soccer fields. Ali found a nice shady spot in the grass at the corner of the black fence. Accessible by pavement from the town of Clifton, or by gravel from the famous free mulch place. Edit: technical difficulties in the image dept. Attachments will have to suffice.