Quit being mean to me!

I'm wondering if I have the words "Abuse Me" written across my forehead. Twice in the last 2 weeks I have been verbally abused by motorists. The first time I was on my motorcycle. Some impatient lady pulled up behind me and immediately honked her horn. Thinking it was someone that knew me, I turned around. She mouthed the words "what are you waiting for?" Being the cool and calm person that I normally am, I responded; "waiting for the f--king cars you stupid b---h! She was in a position that she couldn't even see the oncoming traffic. So again, being the understanding and considerate person that I normally am, I waited until there were no cars in sight before I proceded to cross the intersection (that took about 60 seconds). I played chicken with her, switching lanes and such for a little while until I came to my senses and realized that on my motorcycle I was not going to be effective if I rammed her car. So, we both flipped each other off and went on our merry way. Today, I went to a car repair shop to pick up Amanda. I had never been to this particular shop before and parking was limited. I pulled around the building and parked. As I was walking up some large scary man in a pick up truck yelled at me to move my car. Not letting him intimidate me, I asked "why". He pointed out that I was not in the parking lot of the business I was going to. My bad! It was all one building, but apparently not a connected business. I proceeded to tell him that I was sorry, I have never been here before. He immediately began to berate me saying; "can't you read the sign??" 'This side of the building is even a different color." blah, blah blah. A nice; "please move your car, your in the wrong parking lot." Would have been sufficient enough for me to say "sorry" and move my car. In the spirit of the day, I called him a "f--king moron" and he called me a "bitch". I actually stepped up on the running board of the truck and looked over the top to yell my insult, just to make sure he heard me. Then I moved my car. Why? Why? Why? do people have to be so rude to people they don't even know? I consider myself a nice person, courteous and reasonable, but when someone goes off on me for no reason I loose it! I would never instantly approach someone and be an asshole. I have to get to know them first to see if they deserve it. Seriously people, learn some patience and manners.