The diner is at the intersection of Martin Way and Pacific Ave. in Olympia. We don't know what road she took to get to the Boston Harbor area, East Bay seems more likely if we are working under the assumption that she was trying to get on I-5 at Plum St. but missed the turn. Of course it would also be possible to get to the pizza/phone call area via South Bay Rd. and Libby Rd., but that's a lot more turning and wandering. Could explain the 1 hr. gap between the diner sighting and call time, though.