Harassed on the way to the nats?

In all honesty, if you drove your 'Cuda through Pennsylvania with the blower poking up through the hood the way it is in the photo I would have stopped you, too. It doesn't comply with PA. Vehicle Inspection Requirements, at least not the ones I enforced when I was up there. I had a guy I stopped with a similar setup who was in Western PA. from Eastern Ohio to attend a car show, and he got upset when I stopped him to chat with him about his blower. His argument was that PA. Inspection Law didn't apply to his car because it was registered in Ohio. I politely pointed out to him that we weren't in Ohio at that particular moment, and that the second he crossed the PA. State Line Pennsylvania Law applied to his conduct as well as his vehicle. I didn't write him up, other than to write a Written Warning Notice (which cost him nothing; just indicated we stopped and chatted about the blower in case he was stopped again while he was in PA.) and send him on his way.
Please don't adopt a blanket judgement of all police officers because of the (possible) actions of a few people in uniform.

Then if the guy wasn't breaking any traffic laws (speeding, swerving, ect), he had out of state plates (common sense would say that he was just passing through or going to a show) in my book it was an asshole move to even bother him. Maybe he didn't have time to or want to "stop and chat about his blower". The whole process if done by you or another cop is and was a total waist of his time, your time and risked the safety of you, the guy you pulled over and the other drivers on the road if there was no citation given.
It is a fact that when there is a cop that has someone pulled over people always slow down to look (especially if there is a "hot rod") or people get freaked out by the flashing lights and slam on their brakes. I am not saying that that happened during your stop but it does happen even when cops think everything is safe. We have all seen the car chase shows where someone clips a cop or the car that got pulled over.
My dad used to have a 56 Mercury panel truck, it was his daily driver. He got pulled over one day, he asked the cop why and the cop asked "I just wanted to know where you got the sunroof at?" My dad was in a hurry and is a grumpy asshat and told the cop to go F himself and left the cop standing on the side of the road. The same thing happened to me when I had my 73 Scamp with the sidepipes and I left the cop standing on the side of the freeway.

On a different matter Why is it that if you get pulled over at night the cop has to kick on their brights and aim their spotlights at your back window BEFORE you are pulled over and at a FULL stop??? Once again there is a total lack of any common sense and total bad judgement on the part of cops. What do you think happens when some asshole comes up on your *** at night with their brights on? It reflects in your mirrors and you can't see where the F you are going! That might be why it takes so long for people to pull over at night....they can"t see ****! Yes I am speaking from experience.8)

I have met cool cops and total asshole cops. I have also worked with cops (not as one) and I can say from experience that through out all the parts of the country that I have been there are more asshole cops than cool cops. That is why people have a blanket judgment and no matter how cool you are you chose a profession that will mark you as an "asshole cop".