The Lady at Mc Donalds swore at me!!!

So, I was ordering many meals at the McDonald's drive-through. So I was trying to make sure that we pay for these meals separately, as there were many people in the car. So I explain this to the lady before going to the next window to pay. Before I could finish saying all my orders she told me to come to the next window. However I have explained to her that I was not finished giving my order and she still said I should come to the next window today. So I proceeded to the next window, and when I got there the lady asked me to pay. I explained to her that I had not finished putting in orders. I could tell at this point that she was being impatient with me, so I told her to be patient with me because I was a customer and then she told me she didn't have to take my order and that she was doing me a favour. Next thing I asked to speak to a manager and she says she won't call a manager I should go to the front and see the manager if I want to go see the manager so at this point I'm very angry and I haven't even place my orders. I get into the shop and I asked to see a manager and I explain my story, after explaining to them they apologise and asked to take my order but I told him I want that lady was rude to me to apologise to me. They call her from the bag to come and apologise, and she comes in so angry as if she's ready to beat me up so I asked the manager she can see how this employee is looking at me so I tell her to calm down and she tells me make me calm down. There after I go crazy and I start telling her that she's obviously ruining someone's business and that she will probably always work for someone else. Then this lady literally said **** you and put up a middle finger. At this point I'm fuming. I don't know if this matter has been dealt with accordingly but I just want to say I would be very disappointed if nothing could be done about this I am very angry and I plan not to use a McDonald's ever again, also, I have the footage of her swearing at me and I plan to use it.