It makes perfect sense because it found the words "phone ever" so it interpreted the whole thing as calling the restaurant. "Ever" is in the name of the restaurant and it's the first word of the restaurant's name.
Siri appears to look for key words in the sentence and in what order they appear, and then cross-references different databases according to the key words it finds. So if it finds "phone" it might first look through your contacts for a contact matching the word that appears directly after the word "phone." If it doesn't find a match, it'll go on to the next likely command you're trying to ask of it.
I don't think it always (if ever) looks at the entire sentence structure and grammar.
I'm not sure why I got this response. I asked her this same question a dozen times and still got the same response. Before when i asked her this, she would say something like "you're kidding right?" or "you're holding it." I've never even been to this restaurant before. Very strange.
