Is it me, or are the baristas going mad?

I pull in to Starbucks drive thru today on the way to pick up the kids from school. It's FREEZING outside (technically, colder than freezing), so I pull up to the speaker - and here is how that little conversation went:

Speaker box: "Welcome to Starbucks! I'm Kent, can I start you off with a peppermint mocha today?"
Me: "Uh, no thanks, Kent. I'd like a Grande Sweetened Green Tea please."
Kent: "Great, that'll be $2.11 at the window!"

I drive up to window, and hand Kent exact change.

Kent then turns around hands me an ICED Grande Sweetened Green Tea.

Me: "Wow, it's freezing out here, I had hoped that it would be HOT tea."
Kent: "Oh, OK. You want HOT Sweetened Green Tea?"
Me: "That would be exactly right."
Kent: "What did you want that sweetened with?"
Me: "Come again?"
Kent: "What kind of sweetener do you want us to use in your hot tea?"
Me: "Is this a trick question?"
Kent: "No."
Me: "What did you sweeten the cold drink with, Kent?"
Kent: "Simple syrup."
Me: "Is there a reason you wouldn't just use that for the hot version?"
Kent: "Ma'am, we don't make sweetened hot green tea usually, unless someone wants a latte. Did you want a latte?"
Me: "No. What I want is hot tea. Green tea. Hot. Sweetened with simple syrup. I've ordered it before and not had this problem... why is this a problem?"
Kent: "It isn't a problem, it just isn't something we usually make. I'll get that right up for you."

So I wait.

And Kent hands me a steaming hot, sweetened green tea. I'm happy, Kent is relieved, I drive away.

Kent is lucky that I'm on the highway before I realize it's a Tall.