I haven't checked every single choice at https://3.tesla.com/model3/design#battery, but it looks like autopilot is $3K at time of order, regardless of SR, SR+, MR, LR, or AWD. Prior to the Feb 28th announcement, for all the versions available, I'm fairly sure it was $5K for AP..
It was. Jason of Engineering Explained (who only recently got his 2nd Model 3) mentions that (now old) price right in the title of one of his videos:
So it’s an across-the-board price drop.