From the sounds in the background at the beginning of the song, I detect silverware being cleared of plates, plates probably going from the busboy to the dishwasher; if so, this would lead me to believe that the protagonist is on the kitchen side of the counter - an order taker. It appears that the customer had already requested a bacon roll, since he didn't ask for "a" bacon roll, but instead for "my" bacon roll. That then leads me to believe that he had been sitting at the lunch counter for a while, listening to the order taker complaining about being "Basil", a square peg in a round hole, in the corporate world. The customer is probably impatient and not really interested in a conversation, so he interrupts the man and asks another order taker, probably the one whom he ordered the bacon roll from in the first place, where it is!
Saul