Discussion is getting a bit off topic but I am aware of Plugshare and using it to help plan the trip. Around town driving isn't a worry with occasional L2 charging here and there. Just need to make sure I have enough charge to make the 90 mile drive to Centralia when the trip is over and prefer not to rely on L2 charging speed if I need, let's say, 60 addtl miles of charge.
I just did Seattle - Portland and back in a single day. On the way to Portland, I literally did 290 Wh/mi (no idea how, was doing solid 75mph, but it was a nice day), so you won't need too much charge to make it to Centralia with that rate . Lynnwood shouldn't be that bad if you go there when there is no traffic (late night).
So this is not free, normal garage rates will apply?
Same as in Vancouver BC in both downtown locations. They simply have nowhere to put them other than paid parking lots.