I'm due for an oil change and replacement of the cabin air filter (64-11-9-382-886). Too lazy to change my own oil but assume the cabin filter is easy to access and DIY, right? Is it behind the glove box on passenger side?

You remove the panel under the dash/glove box and then the access door for the cabin filter is screwed in towards the drive line tunnel. I've done it a few times and it's easy enough, just a few T20s if memory serves.

I second the above. I found an old thread that really made it seem like it was very tedious and annoying to replace the cabin filter on these cars and I can confidently say that is not the case. It is a piece of cake for even the most novice wrench turners.