I got one speeding ticket at age 17 for going 86 in a 70 in Texas. I had to pay the fine and do an all-day in-person driver improvement class. That was motivation for me to really watch my speed
Since then, I've been pulled for speeding once-- it was in my hometown, and I was like 20/21 years old. I was going 55 in a 45. I told the officer that the speed limit had changed: it used to be 55, but sometime when I was off at college, it changed to 45. He agreed that I was right and warned me to be more careful next time (where he was sitting was clearly a speed trap).