In washington state, getting onto an off ramp behind an 18 wheeler and onto a 4 lane highway (2 lanes same direction) The 18 wheeler is slowing down on the right lane due to an incline, so I pass on left lane and highway patrol is directly under the FIRST posted sign and radars me going 5 mph over the posted sign (55mph) when I'm attempting to pass. Two things wrong. First, I'm passing while slightly exceeding the speed limit with a reasonable margin of safety, which is permissible in WA state. Last, why am I under radar for speeding if I haven't even reached the speed zone for the 55mph limit and the sign was not in my sight until I got in front of the 18 wheeler since it blocked my view. Got a ticket going 5 mph over the speed limit. Crazy!