I got into a big argument with my friend because his behavior hurt my feelings. He disagrees with me and said that he did nothing wrong. I would like to show him that his behavior is disrespectful and prove my point (or not. If you think that I am the one being wrong.)

Here is what happened. A few weeks ago, he told me to meet him at his work because he had a free door to load in my car. I met him there. We loaded the car. He was not done working so we agreed that I would go to the Goodwill that is around the corner and that he would meet me there. He came but didn't look for me. I saw him so I said hi and we both went our ways to look for stuff to buy. After about 30 minutes, I looked for him but couldn't find him. I left the store, thinking that I might find him outside. He was not there. I went to my car and saw that he sent me a message on WhatsApp telling me to meet him at the dogs park, located 5 minutes away. I started to drive to the park and received another message telling me to meet him at the Safeway. I changed direction and drove toward the Safeway. As soon as I arrived, I got another message telling me that he took off to go to my house and to meet him there. That hurt my feelings that he had me drive all over the place but couldn't wait for me to arrive. He justified his behavior by saying that he wanted to finish the concrete before it got too dried.
Then, a couple of days ago. Same happened. We agreed that I would pick him up at his place and drive to go to an important appointment he had at noon. We didn't set a time. At 10:45, I was a the red light a block from his house and I checked my phone to see that he sent a message on WhatsApp to tell me that he took off because he didn't want to be late to his appointment. I called him but he didn't answer. I got mad that he didn't call before leaving. I thought it was rude and disrespectful. We had enough time to make it to his appointment on time and I never flaked on him. He doesn't understand and said that he did nothing wrong. To me, that kind of behavior tells me that he doesn't care.
Sorry for the long explanation. And by the way, I don't live around the corner to his place. It's about 30 minutes drive.
I would love to get insight on our situation. I got mad. He said I made a big deal out of nothing.