Was I actually being difficult with this impatient drive‑thru customer?

I work drive through at mcdonalds and take cash. There were only a few of us in the kitchen, and we were backed up. This guy pulls up to the window who has probably been waiting a while. All he ordered was a coke. I ask him how he's doing. he's like "good..." I took his cash. Im bad at counting change so I was taking a few seconds. While I was counting his change to give back to him, I ask him if hed like a receipt. He was like "what I'd like is to get my drink so I can go home". I gave him his drink, and said have a nice night. He said nothing, and sped off.

Was I actually being difficult with this impatient drive‑thru customer?
Post Opinion