We stayed at BWV last month. One day we went over to OKW to each lunch at Olivia's. The guard saw our "member parking permit" from Boardwalk and waived us through with a "welcome home"! When we checked into Boardwalk, we said we were checking in, the guard checked a list and let us in.
If you say your checking in, they will ask you for your drivers license and sometimes the confirmation letter. They then check your name on their list.