Speeding, and the LAW

I got my first speeding ticket today. It was exactly two hours and fifteen minutes ago..........NOW! I got caught driving 40 mph in a 30 mph zone. It really wasn't my fault. My speedometer is broken. It just doesn't work. Sure I probably could have gotten it fixed a long time ago an avoided all of this. But my ticket will cost me less than it would if I were to fix the damn speedometer. I found out earlier from a local mechanic that it would cost roughly $80.00 to replace the cable that goes to the transmission and tells me how fast I am going. He estimated the my driving citation would only cost around $50.00. I think I will just pay the damn ticket and be a bit more cautious from now on.