Dammit, Car

I bumper sticker you up all pretty-like, I avoid ramming you into another curb for almost a year now, and this is how you repay me?

Your stupid "check engine" light comes on, and my Car Guy can't figure out what it is, and now I have to take you to a dealer which will cost lots of money and generally be a pain in my ass.

I hope you're happy.

I'm so torn

On the one hand, it was an awesome episode. Virgins! Demons! Fucking Lilith! But he did not shoot the deputy! Good plan luring them in there and trapping them with salt. And the tape recorded exorcism! Henricksen finally grows a clue and there is mutual respect going on. So much love.
On the other (evil, EVIL!) hand, they killed Henricksen! Whyyyyyyyy? Also, shut up, Ruby, Dean's plan was awesome and saved everybody, and it's not his fault Lilith killed them afterwards.

Meanwhile, I have been saying they should get protective tattoos for years now (since the penultimate episode of the first season, anyway), and they did! Ha! It's about damn time.

But why did they have to kill Henricksen? Whyyyyyyy?