Hertz - 4x4 in Northwest?

I've been looking to rent a 4x4 (explorer) or larger in Seattle or Portland for August, and no matter what date I put in it says not available.

What I really want to do is rent the car in SFO or SMF and drop it off up there. But when that didnt work, I tried strictly SEA-SEA or PDX-PDX and got the same message

Are they dropping them? Or can the all be sold out already?

Thanks

We do carry them, as I often see them at SEA. And my HLE (Bellevue Inn) usually has a handful.