Special Order at Mickey D's!

When I walked into McDonalds it wasn’t really crowded, there were only a few customers. I went up to the cashier and I felt a little awkward to order but I went forward and told her I wanted a cheeseburger with 4 pickles on it and small fries without any salt. In the cheeseburger I told them that I was vegetarian so I didn’t want the meat either but at first she was like we don’t have veggie burgers and then I told her I wanted a cheese burger. She didn’t really act weird about it as I thought she would and she turned out to be nice about it except she told me that I would have to wait for the fries. Then their machine was really slow to print the receipt so I was waiting and watching them prepare my order. There were 2 cashiers and about 4 people working in the back with one that wore a red dress so I am guessing it was their manager.
When they got to my order the cashier was like “FRIES WITHOUT SALT?!?!” and the manager was like don’t dump it in there, first rinse out the bin and then put them. I never would have thought that they made fries without salt and they were actually nice about doing it. Then I saw them rinse the bin and then they put the fries for me and they poured some in the paper bag and finally my order was done. It took about 20 minutes- only because the other fries had to be done, if I ordered 2 minutes before they dumped a fresh tray of fries as I was ordering but it wasn’t that long.
Then she finally gave me the receipt with the order and when I looked at it, it all seemed fine except where the pickles part came it said extra pickles and I told her that I need it to say 4 pickles and she said we don’t have the machines to do that. Then I was like are you sure you can’t do it and she was like yes we only type extra and she asked me if it was for a school project and I told her yes and I asked her if she can type four then and she said no it is only extra, so then I just went and sat down to eat.
I went to check if the order was done correctly. I knew the fries were perfect but I just had to open and check the burger and yes they had put exactly four pickles and I was happy!
I think this McDonalds did a good job in handling a special order. They didn’t seem mean about it and they got it at their first shot. I know if I had gone to the one that was really busy like at a mall then they would probably have to repeat my order and be mean about it as well. The only thing I can see is that they can type how many pickles I wanted or they should have a special function to add something that their buttons already don’t have because it can help them coordinate more efficiently because she had to tell them I wanted four pickles and if they misheard or forgot they would have to repeat my order again and it would be a loss for them.