Got in Trouble This Weekend

[DT1]

Last week I took my instrument cluster out to my 71 to try to isolate a rattle under the dash. I figured that as long as I had it out, I'd clean up the gauges. As I was cleaning up the speedometer, I dropped it on the ground and it exploded into pieces. Try as I might, I couldn't get it to work so I went to the computer and snatched one up on Ebay. Yesterday I installed the Ebay speedometer and decided to test it out. I drove ten miles out of town to seldom traveled stretch of road and did an odometer check between intersections which are exactly one mile apart. Next, I ran it up to 60 MPH indicated for a mile. It seemed to be indicating way too slow so I turned around and ran it up to 80 Mph. That's when my mirror turned bright RED. The officer told me that he had clocked me at 95 Mph! I tried to explain my situation but It didn't seem to matter to him. Besides, I was guilty as sin! Then he asked me how much I had to drink and I said "Nothing". It really surprised me when his next words were "Don't lie to me". I told him that I would be happy to do a field sobriety test. After I passed that, he made me do a breathalyzer test.
I passed that too, but I think it just irritated him more. He wrote me up for exactly 95 MPH. I very respectfully thanked him and went on my way. I'm not sure what the laws are in other states but I believe in California the officer has the discretion to haul you off for reckless driving if you are exceeding 85 MPH or the posted limit by over 30 MPH. I'm grateful that he let me go. After thinking about it, I also think that for a citation like this, I won't have the option of going to traffic school to try to keep the mark off my record. I'm pretty sure I'll have to appear before a judge. So I wonder if I should just suck it up or should I plea my case? I have the picture of the Ebay purchase and I truly was on a remote/deserted stretch of road. I wasn't goofing around. I was merely doing a speedometer check in a place that I thought was safe. BTW... I found the rattle. It was a loose speaker.