Enforcement is not possible when people speed in groups, the highway patrol can't pull everyone over at once. The only possible enforcement would be an automated system of speed cameras as I believe Australia uses.
it's all but impossible to email most people any more
This does not match my experience at all. Everyone has an email address, if you want to contact someone it's the one thing you can ask for that you can be sure will work. Sure, they may email you back to say that they prefer to have chatty conversations on facebook.
We now have state inspectors go through out trash cans looking for light bulbs.
Considering the mercury in the common CFL light bulbs these days, how you object to this? Do you really want to get mercury poisoning by letting improperly disposed bulbs seep into the environment?