There are plenty arriving at dealers in CA, and as far as I can tell, they are not selling.
Champion Nissan in Santa Clarita has had a bunch of Plus's for a few weeks and it doesn't look like any have sold. They have already marked them down by 3k for SV plus models. Which actually means according to their website they have SV plus's for slightly cheaper than an S plus. Go figure!
So I may be wrong but I would assume that you could negotiate them down a bit further, maybe walk away with a SV plus for 4k off MSRP. They appear to have the weather package but not the tech package which also seems an odd combination for the SoCAL market.
2018 Leaf SV Pearl White with Tech and All Weather, Purchased New on 5/3/19