Disgusting attitude

Just did a drive through at McDonalds Subward park and I got such a disgusting service. Firstly when I was ordering the person taking the order was having conversations in the background while I was putting my order then I get to the pick up window I was given a happy meal in a brown bag, I asked why the was no box and I was bluntly ignored and told to go wait by the door for the rest of my order. No courtesy what so ever. They make you feel like they doing you a favour by serving you......