Comment by jrs235

Some states follow Assumed Maximum Posted Speed (in certain places) and others are Absolute Maximum Posted Speed. It is not absolute in an Assumed Maximum Posted Speed state that driving faster than the posted speed is against the law and deserving of a fine, merely it is prima facie evidence that you were driving dangerously but can be challenged and overturned. For example, in Minnesota, outside of municipalities on highways (there may a few more qualifiers like posted speed is 55 mph or higher and might need to be a divided highway, I don't remember 100%) an officer can pull you over and issue you a ticket for merely driving faster than the posted speed limit. You can even admit you were driving faster (I don't recommend this). You can still challenge the ticket in court. If you can convince a judge that your speed was safe, the judge can let you off. If the weather is dry, temperature moderate, visibility great, no other people or vehicles around you, you were able to safely slow down, and (prima facie evidence) that you posed no risk as no one was injured by you driving faster. In Wisconsin though they are an Absolute Maximum Posted Speed state so if you are found to have been driving faster than the posted speed limit, that's enough to ensure you can be fined.