Yes, I did notice that replies to your post were blaming cookies and some incorrect assumptions - hence I wanted to put the time in writing this post separately

Yes, I did notice that replies to your post were blaming cookies and some incorrect assumptions - hence I wanted to put the time in writing this post separately. To further validate our assumptions - try to use google maps daily for at least 2 weeks while in Seattle using that exit IP. Logic tells me that it should update once more to the new location (I'd think it's unlikely to be a once off update due to the dynamic nature of IP).