I am in Florida and just purchased a 2018 A3 e-tron PremiumPlus trim, from California. I have to pay about $1,000 in shipping.
As of Dec 14, 2018, a dealer's research for me showed that there are only about 100 A3 e-trons left in the entire US, mostly in Calif.
Also, the $4,500 tax credit in the US ends 12/31/18. Who thought that one up?