I told them I wanted a pod for the transcon, and was willing to pay the fee.

They did it.

Them everything hit the fan. SFO concierge was very concerned I had no coupon. YVR called me as I was boarding to ask if I had a FIM. I said no. They said SFO should have dealt with it. They met me upon landing with a FIM. It was necessary when I boarded.

It's possible, but I'm not sure it's allowed, because it really complicates things and causes extra work.