true .. you really can't argue you don't know what the speed limit is anyway ... ignorance is no excuse, you could go into court and try the "I was just keeping up with traffic" excuse which I have had work once or twice. to be frank I don't think that will work and I have a feeling there is more to the story but based on what is here it doesn't rise anywhere near the "criminally negligent" alleged by the other guy5 MPH over is typically not unreasonable, I drive 10+ over quite often, but you can't argue you don't know the speed limit when you're the fastest guy on the road. Its clearly slower than you are driving.