McDonald’s complaint: This can’t be how you allow your customers to be treated

To start of I came into this restaurant approximately 9 days ago at approximately 10pm and encountered a very young lady at the counter who to my order and got my drink. I was in the process of handling some my affairs via my cell phone as I waited on my order. I observed 6 different sets of people order there food and receive there orders before I said anything. Before I said anything I looked at the time I had spent on the site I was working on and to be precise it had been 17min and 34 sec since I ordered. As I sat fir approximately another minute he called my and before I walked out I checked the order. I immediately took it back and told him it was wrong. He proceeds with an attitude to the kitchen and not only where I could hear it but where 4 other people could as well and says fucking customers. I had sat back down to wait again when he said this and I asked him what did you say? He comes back out of the kitchen and said do you want a refund and acting like a real jerk. I told him yes and he gives me a refund which wasn’t even the right amount. I at that point let him know I would be contacting a manager and his comment back was I am the manager. I told I would have to speak with someone above him and he just laughed. I decided it wasn’t worth the trouble reporting this because nothing would probably ever be done about it. The reason I have decided to complain is because as I stood at the gas pump in the pilot parking lot he came out of yhe restaurant behind a young lady and told her to get the fuck out of here. I don’t know whatvissue there might have been , but know matter what it was a customer should never under any circumstances be talked to or treated in this manner. I work for a world wide company as large as McDonald’s and If I ever were to treat my clients this way I would be terminated on the spot. He didn’t say sorry for the wait or have any concern about it. He would have gone outside and tried to fight if I had even tried a little to provoke him. His name is Brice. I don’t know his last name but it shouldn’t be hard to find him. I was told by another person make the complaint,and to send him a copy afterwards. I can’t believe Mcdonald allows there employees to treat customers this way!! I hope you resolve this.