Was riding a seldom traveled road about 10 miles from home minding my own business when I passed a deputy's cruiser going the opposite way. I as always look in my mirrors to see him hit his brakes and start turning around. I start thinking what is his problem I'm not doing anything wrong. I then look down at my speedo and I am going 105 mph so I pull over and wait for him. He told me he clocked me at 92 mph and as long as I had my MC endorsement he was going to give me a warning. Told me he rides and he understands that going that fast is not that noticable on a bike on long straight roads like that and I should just slow down. Well I was thinking that atleast I know my speedo is off by like 13mph as I was pulling away from where I stopped. Then on my way home the speedo decides to quit working.