Ok...so here goes...this happened on i5 NB near JBLM. it was around 6 pm so rush hour was winding down, but still possible sudden stop and go traffic. I merge on to i5. blinker on. check lane 1 and 2 in mirror...very very clear. i move into lane 1 but dont accelerate so the cars in front can still merge. i double check lane 2. blinker still on. i move over to lane 2. now i am catching up to some cars infront of me in lane 2 and there is a brown truck moving faster than me in lane 3 but he is not up to my position yet. There is still room for me to make a quick switch to lane 3 and accelerate so i dont cut the brown truck off. i make a split second decision to change to lane 3 and accelerate just in case the brown truck is speeding. I put blinker on, lean over and make a quick lane change. i accelerate past the car that was in lane 2 and double check my mirror to make sure brown truck is not on my ass. im good so i let off the throttle and blinker again to move all the way over to lane 4 behind a white prius. i am now safely in the left lane and settling in for my jaunt up i5 to my exit home. i look in my mirror prob 10 seconds later and LEO is there. I think cool. no big deal. 5-8 seconds later i double check. LEO is 8-10 ft off my rear tire. i think, not so cool, i blinker and move right. leo drags behind me and then moves over. now i know i am gonna get lit up. i blinker and move all the way to right and get pulled over. leo asks why i was weaving and making lane change without blinker? saying i was driving aggressively. I state i did not weave and was sure i used blinkers. i stated i was moving to the left lane on my way home to avoid stop/go traffic in the right lanes. This was the only thing i was able to say about my actions. i get a 124$ ticket for improper lane change and he says he is giving me a break by not giving me an aggressive driving ticket. My conclusion is that when switching to lane 3 from lane 2 i made a decision to accelerate toward what i knew was ahead of me instead of hitting breaks leaving myself open to being rear ended. (my worst fear while on the highway). I suppose in the future i will wait and let brown truck pass then move to lane 3. but i still want to take this ticket to court. i am convinced that i was proactive and did what i considered to be the safest decision at the time. whenever i run into slowing traffic i go on red alert... thoughts?