I'd seek legal cousel to be sure. Some states allow for a carry over of SOL if moving from one state to the next, meaning two different SOL periods could apply.
If you are 100% certain, then show up to court and state that it was past SOL and ask for a summary dismissal.
BTW, PFDs with CapOne are next to impossible. DW had one and they denied over and over and over again. Sent something like 8-10 PFDs with maybe 2 responses to the negative. Then one day, they changed the balance due to $0 on each CR. No explanation, but likely due to them selling it, I assume.