If they were adjusting salary based on where you are living, I think I'd be getting a mailbox service or a good friend in either NYC or SF and live somewhere low cost.
Or, with the additional state taxes (pay in CA and pay where you actually live) not anyways worth the drop in salary?
I don't have to change anything about taxes or drivers license or domicile and I can stay in my theoretical second house for a long time in wa state, 400 miles away. Probably fb would say that's not living in seattle. What if I commuted to a shared aprt in seattle for 3 days a week, is that living there?