Well, there are some great in-state Washington universities. We love University of Washington, and we have friends who really like CWU.
But please confirm: What year did your dad retire? That really matters. If it was 3 years or less, veterans and their dependents may potentially receive in-state status in all 50 states, but they have to be using the particular programs listed.
There are other exceptions. Please read the articles below for starters. I would also suggest you check with the financial aid office of a target out-of-state public university where you are thinking of applying.
https://www.military.com/education/2015/11/13/veterans-now-eligible-for-resident-tuition.html
https://www.ausa.org/blog/state-tuition-veterans-and-military-families