... however drunk driving is completely different...
No, it's not. Alcohol related incidents are on a steady decline in the past 20 years. It's not because the legislators are pushing for zero tolerance, mandatory sentencing and other draconian measures that have proven not to achieve anything but fill the jails. You should get your facts straight before calling someone's argument asinine. Here is a Crash course on MADD for starters.
We have a culture of people fighting every ticket tooth and nail to thank for that, not saying its right but its the reason.
We have a prohibitionist culture. Why do you think people are spending their time and money fighting seemingly trivial charges? What are you saying is or isn't right, BTW?