My question involves a speeding ticket from the State of: california

hi guys, well not to long ago i got a speeding ticket on the freeway for going 92 in a 65 zone, the cop was a high patrol wearing a blue jumpsuit! as i was coming around a turn on the freeway, he was hidden on the right side of the freeway. i was in the lane closest to the fast lane and there was also a car next to me on my right that i was slowly passing, after i was slowly passing this car i saw the cop on the right and i slowed down, as soon as he saw me 1 second later he started moving and came after me. he told me that he clocked me on his Radar unit car going 92! i asked to see his radar but he said no way! the whole thing took not even 5 mins. the cop wrote on the ticket "excessive speed in a 65 zone" and he wrote estimated speed 92mph! so i am 17 years old and a juvenile and i cannot do contest by written declaration nor can i extend my court date! what would u guys do in my situation? how did he get me on radar when there was a car next to me?? how did he get me on radar when he wrote an estimated speed of 92?? please guys help my court date is tuesday! thanks everybody