Remember, the original post concerned someone getting a warning or citation for crossing arms not being all the way up before crossing the tracks. My advice was to check the law to see if it explicitly says that a person has to wait. Also, in the example of being tired at 3am, they gave several reasons for an officer to stop them. While being tired isn't exactly against the law, it is a factor in many crashes. Many studies have shown that tired driving is equivalent to having consumed alcohol. Also, 3am is pretty much "prime time" for those sneaking home after drinking.
I don't know how many people caught the History Channel show Deadliest Roads where Ice Road truckers drive in India. This was a great example of what would occur if it was a "free for all" on the roads. There was passing on blind curves, road rage all the time, etc. I, for one, am glad that on the roads that my wife and kids are on, that there is people looking out for safety and preventing chaos.
My point is, keep the heat on those that pass the laws, not those that have to enforce them. This is where we all have responsibility as voters. All of the laws that officers enforce are passed by your representatives. It kills me to hear about 1500 to 2000 page bills that are passed, and the legislators do not even take the time to read the darn thing.
Two thumbs up!