Thanks for the help (again). Didn't really want to split the stay. In the meantime though, we found a unique hotel a ferry ride from the city in Tiburon (Lodge at Tiburon). Looks like we'll be paying rack rate, as it doesn't show up in any priceline or hotwire lists (hotwire has a 2.5-star hotel in Mill Valley - Sausalito - Tiburon for ~115, but it could be anything). I'll use the savingsbarn link next time I do book something through PL though.