I think what you have there is a wood wasp.
The good news is, that tail ain't for stinging.
The following is from a page called "Major Pests of British Columbia's Forests."
"Wood Wasp - Attacks dead and dying conifers, especially fire-kill or salvaged timber. The long "stinger' is actually an ovipositor, used to inject eggs into the sapwood of trees."
Call an exterminator and tell them what you think you have. I would try Cascade Pest Control - http://www.cascadepest.com/
There is a mention on Yelp from a few days ago. One Yelper says CPC took his bug and evaluated it for free. Their Google ad said free inspection, but their site doesn't. Could just be an oversight. Ask about it.
Boy that bug is creepy. But on the plus side, we all learned a cool new word - ovipositor. Looking forward to working that into conversations.
Report back on how this goes please.