My question involves a traffic ticket from the state of: Washington
Hi all, thanks in advance for your help.
Last night around 11pm I got a speeding ticket in a 25mph zone. The road that I was on is only about 100-150 yards long. I was at a stop light going straight. When the light turned green, I accelerated quickly but then let off and coasted to the stop sign ahead. I turned right and about 50 yards down I saw the cop round the previous corner to come pull me over. He first asked if there was a reason for me driving quickly. I said no and that I wasn't speeding. He said I was and asked for license/registration/insurance. When he came back he handed me a ticket with RCW 46.61.400. There was no speed indicated on the ticket. I asked him how fast I was going and he said probably 35-40. He visually estimated my speed.
I understand that some cops are able to estimate speed fairly accurately (within 5 mph or so). But with such a short distance and at night wouldn't it be harder to be that accurate? Is there a minimum distance they need to be able to visually estimate?
Also an adjacent road I was on had a 30mph speed limit that is visible from the road I was cited for speeding on. I assume I can't use that to say the speed for the 25mph road is confusing because the adjacent roads are all 30. The law states that all town/city roads are 25 unless otherwise posted.
Thanks again. Let me know if there's any other information I can provide.

