Guess that they will need your signature there, you can pay any of the guys there in front of Khalifa Traffic department something to finish this one, but it cost nothing but 25 Q.R and does not take that much of time. The guy will ask you for 25 or 30 Q.R also ... you can go in the afternoon and get the job done .. took from me 15 minutes to get the same permit for my father's car before ...