You gotta talk to a person. There used to be a direct phone number posted somewhere on Reddit. I could not find it.

Edit: Here's a thread https://www.reddit.com/r/Seattle/comments/qwad98/ive_been_waiting_for_over_3_hours_to_speak_to/?utm_source=share&utm_medium=android_app&utm_name=androidcss&utm_term=1&utm_content=share_button

Basically call WSDOT headquarters or regional directly and complain until they give you an escalation number.