Officer pulls rank

I work for a courier company and is allowed to park in loading zones. Today I had a dropoff at breakwater apartments in waterfront and stood in the loading zone just before the building. Then from across the road, someone shouted at me, when I looked up it was a traffic officer, I could not hear what he was saying as he approached me. Then still shouting from across the road he isni was delivering or collecting, I said yes, he asked do I work for a courier company, I said yes, he said my vehicle was not marked and by now he was by my vehicle and was checking the licence disc, I told him I could show him my paperwork if he needed to see it. Then I asked him why did he shout at me and not confront me in a civil manner, his lame excuse was that he was not that far, but him shouting at me would obviously mean I would have to shout a reply which is utterly disgusting. When I asked him again why did he feel the need to shout, he pulled ranked and got defensive and said well if you come with an attitude I'm going to charge you. By this time I walked away, as I needed to do my delivery. I also told him i would be 5 minutes. When I returned to my vehicle, I found a ticket against my window of which I cannot makeout heads or tails of what this officer wrote. I am utterly disgusted that someone that does not know how to speak to people is put in a position of authority, a glorified meter****! The officer in question is, J Frederick's, i would assume he is from Gallow Hills traffic department. I have seen him before in waterfront walking, so he is not a vehicled officer. Clearly he must not deal with people just cars, or he needs to go on a course that would allow him to converse with people in a civil manner as he is not dealing with animals.

Further I would like a verbal apology from this officer who felt the need to threaten me with his rank!