Was quoted a little over $1500 with AA for the Standard Range+ with a $1000 excess, though that included glass cover and a rental vehicle if the car is being fixed. (would be around $1400 without those).
It took them a few minutes to work out what a Model 3 was, as it wasn't listed on their online quote tool. Initially they said they didn't insure Teslas, I reminded them that they did have both the Model S and Model X listed in their quote tool... A few minutes of 'let me talk to my supervisor' and they came back with the quote.
I was surprised they offered glass cover and queried it, they said that this would cover all glass except the 'sunroof'.