After several failed attempts, I finally found them open. Their Gyros are very good. I think mine was between $7 and $8, which may be pushing the envelope a bit for food truck/trailer food in Salem Oregon. Their open hours seem to be sporadic so it's best to have a plan B in place.
Yes that is pushing it, although I must say I'm used to $3 gyros in Brooklyn where there is one on every corner. I need to review falafel king, they have a unique way of wrapping their gyro that makes it not messy.