Lushootseed Language Learning Programs?

Hey there folks, I have recently developed some interest in learning the language spoken by the local Coastal Salish tribes, Lushootseed, I see a fair amount of self guided resources available online but I was wondering if anyone has any knowledge or leads on potential in-person classes or programs in the area, in particular an immersive course like the "Lushootseed Language Institute" which was a two week immersive course held by UWT in the summers of 2016 and 2017 would be ideal for my learning style but really anything that, I as a low income disabled adult would be able to attend, would be awesome. Thanks for your time reading this and for any replies!