@Jeff N was kind enough to supply the link of a web page that holds the raw data of fuel economy and emissions for car on the roads in the US. This is the repository that fueleconomy.gov (eventually) uses. Model 3 is not up yet, but I presume any day now. The entire database is about 15 MB, listed under 'Download the Vehicle Data' in CSV or XML format. I found the data I wanted in columns from AU onward. Sorting by AU and AV made it easy to find the Teslas in the pile.