Mc Donald's Doesn't Value Its Customers

I drove through the drive-through to order only to find that the ordering machine wasn't working and a note that said that we should order on the next window. After parking and waiting on the next window, the waiter comes and tells me I should order inside. When I told him the sign on the ordering machine said I should order on that window, he tells me he has other customers to serve and rudely shut the window. When I approached him inside after he had taken everyone's order and tried to explain that they should state on the note that we should order inside instead of the next window, as the note said, he abruptly went to the back without saying anything and asked another waiter to take my order. While I did speak to the manager, I was appalled at the fact that the manager didn't say anything to or about the waiter's bad attitude. I wasn't even shouting or rude to anyone but clearly customers' complaints are of no value at Mc Donald's. To make matters worse, I had to wait for about 30 minutes for my food because the same waiter I'm complaining about refused to serve me. Worst attitude I've ever received from a waiter or anyone, in fact!!!