ZZR-250 Choke jammed

Hi guys, new to this forum and indeed to riding as well.
Anyway to cut to the chase I tried starting my bike in the cold today. Now to clarify a few things I did have my bike serviced and tuned and has been idling at 1500rpm or so for the past few weeks. Anyway as it was cold, I decided to give it full choke on start (which I have just found out isn't the best of ideas) but nonetheless I did it and because the choke is quite stiff and unresponsive at times unless I pull it up hard, I gave it a bit of a yank and the idle went up to about 5000-6000 as it normally would with full choke but then after about 10 seconds or so, when I decided to back off on the choke, the choke seemed to have jammed up and the revs wouldn't drop and would sit at about 6000rpm. After some research online, it seems that the choke linkage might have been jammed up. Any advice or help would be much appreciated. I live on the lower north shore of Sydney and wouldn't mind riding it a short distance if any of you living nearby are willing to take a look at it but if not then any advice through this forum would brighten up my day too. Thanks in advance!
Anyway to cut to the chase I tried starting my bike in the cold today. Now to clarify a few things I did have my bike serviced and tuned and has been idling at 1500rpm or so for the past few weeks. Anyway as it was cold, I decided to give it full choke on start (which I have just found out isn't the best of ideas) but nonetheless I did it and because the choke is quite stiff and unresponsive at times unless I pull it up hard, I gave it a bit of a yank and the idle went up to about 5000-6000 as it normally would with full choke but then after about 10 seconds or so, when I decided to back off on the choke, the choke seemed to have jammed up and the revs wouldn't drop and would sit at about 6000rpm. After some research online, it seems that the choke linkage might have been jammed up. Any advice or help would be much appreciated. I live on the lower north shore of Sydney and wouldn't mind riding it a short distance if any of you living nearby are willing to take a look at it but if not then any advice through this forum would brighten up my day too. Thanks in advance!