Thanks for the the update. I'd much rather trust a local like you who lives and commutes up there, than a computer that does not factor for the realities of real life.
Three hours works! Fest West Starts at 9:00 am so if you leave that weekend morning at 5:45 am you can be out of town before the real snarls begin, and still get here early!
The drive would also give you time to listen to those TI podcasts from last year.
I'm coming from Marysville, it's actually FOUR hours from there. But I'm also coming down Friday, not Saturday, and staying in a hotel.
I work in Seattle so I'll just load the car up and drive in to work ($16 for parking in a safe lot) and leave between 3-4PM. Of course I'll be driving right into the teeth of afternoon commute traffic so who knows how long it will take...