Too much in your post to respond to all, so will just pick two items.
Fine vs warning- sometimes a warning is enough to educate a driver for a very minor violation, other times the fine has to be big enough to convince the driver that it is a lot cheaper to follow the rules.
I sure hope you were not serious about hauling 2000 bu of corn behind an F250. No way on God's Green Earth you could control or stop such a load.
Bob'd Old Iron
Ignorance of rules is no excuse.