No, this is a real case of “Oh Shiitte!” is actually a real threat. I’ve driven those coves and bays from mid-state Washington down to the Columbia River. You have ONE coastal two-lane road.
It varies going up and down from 5 feet above sea level (ASL) to 50 - 60 feet ASL higher. Then bends and curves back down to the next tiny coastal town. Every 5-15 miles, there is an road going back east towards Interstate 5. Interstate 5 is a bit higher - 35- 70 or 80 ASL. Its bridges? Might stay up, might fall. Landslides and roadbed collapses as in Alasaka’s 1960’s earthquake will likely cut up parts of I-5, even if the bridges are good.
The tsunami will likely strip bare everything within 30 feet of today’s waterline - but depending on what land moves up and what land moves down, that too may vary by 2-3 meters.
Alrighty, then. /s