Sudden slow downs. WhyNot necessarily. The radar is pretty fast, but it's being operated by a human being (who probably has slower reflexes than YOU do) and...
Duh, Roads are paid for my gasoline taxes. And at least in my state, so is the State Police. In fact, as far as I can determine a significant portion of road taxes are being diverted to uses not directly related to roads. And this doesn't even begin to include the property taxes collected based on the value of cars, or the property taxes buttociated with structures that house cars (garages) or taxes on car sales, or taxes on buisness that sell cars and car parts, or income taxes from the people that sell cars and car parts, taxes on large trucks, property taxes related to the trucking industry, etc., etc., etc.
I just looked through the Raleigh City Budget (they are asking for a bond referendom to pay for roads) and realized that more than half of the funds collected based on gas taxes and automobile property taxes are being diverted to finance other items. Of course this doesn't leave enough money to keep the roads in good repair, so the politicians are asking for more money (so that they can continue to divert legitimate highway funds to other pet projects like a new Civic Center and pulling up a stupidly designed down town "mall").
It is just plain silly to claim that gasoline and automobile based property taxes are not sufficient to cover the cost of roads and other automobile related costs. The one "cost" I will conceede that is not being covered is use of the "air" to fuel cars and to act as a dumping ground for exhaut gases. An extra $0.50 gas tax is justifiable to cover this usage.
Ed