I truly appreciate the effort and sacrifice police make. I've had my hassles, some fair and some not so fair. I've got friends that are cops and I see some of the stuff they have to do. I even think the rent-a-cops do their best with what they have and the orders they are given.
I chose a career where I didn't have to carry a gun or wear clothing to protect me from being shot at or stabbed. Regardless of the color of stripe on their pants, I always answer with respect and so far, have been treated with respect. If I don't like a ticket or something else, I let the courts decide what's right.