Show up in court, plead your case, admit to speeding, but challenge the claimed speed on the ticket.
You mentioned "super speeder ticket" so I'm guessing Georgia, unless some other state has started this practice as well. You have a couple of additional avenues to pursue as well if that is the case. Under Georgia State Code, section 40-14-5 the unit must be calibrated at the start of the officer's shift and records must be maintained, you could request to enter said records into evidence to see if he actually did follow the instructions. If he didn't you could get it tossed out that way.
Additionally unless it was a State Trooper, the officer is required by law to notify you that you have the right to request he/she test the device for accuracy before he/she writes you the ticket. Now the request has to be made before the ticket is written, but if you were not informed that you had the right to request such test you might get it tossed out/lowered in court. Although it is a matter of your word against theirs as to whether or not he notified you of said right.
http://law.onecle.com/georgia/40/40-14-5.html