Got out of work a bit early tonight, on the way home. In the Passat. Heated seat making me comfy. My route home takes me through a small one-stoplight kinda town, then onto a two lane (one each way) state road a little over 8.5 miles long to the city where I live. I'm almost all the way across this town when I see a set of headlights on the opposite end in my rearview. Think it's a co-worker, no biggie. Less than a minute later I signal to make my turn and pull to the right at the stoplight. Happen to look up in the rearview again and see a set of headlights come F-L-Y-I-N-G right up behind me. I notice the lights dip since the driver had to slam on his brakes and go to dims as they were on high beams (Didn't notice until then, thanks auto-mirror). I think "*******" and look in my off-hand mirror as we pass under a street light. He's right behind me still. I see a black slam-bar and a beehive logo. Great, UHP Charger. The state road goes as follows - 40 mph from the light, less than a mile than to a 50 mph zone for about approx. 1/2 a mile and onto 60mph for the remainder until you hit a set of railroad tracks then it's back down to 45mph and then 30 since you are in Tooele. Moving on - I get to 40, follow the road. Wait for the sign to read 50mph before increasing. Cop is still glued to me. 75 feet after the 50mph section starts it's legal to pass. I expect this guy to do the normal UHP thing and floor his Charger past me. Nope, still glued. 60mph and I lock the cruise. This cop stays glued to my bumper at the speed limit. Several times during the course he actually closed the distance to what I considered reckless and unreasonable. Why? He was close enough that I could only see the top 1/2 of his windshield. Close enough that I could see the little red readout from his clocking device reflecting on his face when he moved (in the dark @ 0040 no less). Close enough that the light sensor on the mirror could not pick up ANY light from his Charger and actually went back to daytime mode! If there was any emergency situation that required me to hit the brakes, the front of his Charger would have piled into the back of the Passat and done some major damage. This continued until we reached the next stoplight at Main St. in Tooele and both turned right. Then he floored it around me in the left lane and took off up a 35mph Main St. at what had to be close to 80 but not before I could grab his plate number. I called it in to dispatch and am expecting a call from a duty sergeant in the AM (we'll see). Still new here so no idea if any members are/were LEOs, but what possesses an officer to conduct themselves in such a dangerous fashion? He had no conscionanble reason to follow me like he did. Sorry if any of this comes across as incoherent/run-on. No sleep the night before + 12 hour workday + sick child = running on fumes and not getting any better.