Room Service

I got breakfast this morning via room service. (Question: how much should you tip room service people?) Here's a bit of our conversation as I filled out my receipt:

RS: Is this your first time in Philidelphia?
Me: Second. But the first time I was, oh, about 13. So I don't remember much.
RS: [laughs] Where are you from? What city?
Me: (knowing that he'll have no idea where "Ririe" is, I decide to go for the state.) Idaho.
RS: Idaho? I've heard of this. [pause] Is it an island?
Me: [stifles a laugh] No. Do you know where California is?
RS: Oh yes, California!
Me: It's north of that.

As he left the room I heard him muttering to himself, "Idaho... Idaho..."