No they do not check SFI expiration at all that I know of. I’ll be out of town tonight and Saturday…but I’ll be home all day Sunday if that works for you.
Also, I should add that RCI (as well as almost all harness makers) offer ONE free recertification. Simply send it to them, they’ll inspect, restitch, re-certify and you’re all set. I prefer 6-pt, due to the option to do F1-type anti-submarine strap routing…so I never sent it to them.