I guess I don't understand why you would think that going to a restaraunt to eat would entitle you to drop in and use the pool. Are you staying at another
DVC resort on points that day you are planning to stop in? I think the suggestion of calling the front desk to get thier permission is a great one, they can make the determination if it is OK. Abuse by locals causes a legitimate DVC member who'd like to visit the resort for a future stay (although I didn't read that) some limitations. WDW resorts have the same problems. There are DVC members who feel that because they purchased points at BWV or WLV that they should be able to drop in and swim at the pool at any time, regardless of whether they are staying at the resort. I guess if they live close they feel they also kind of purchased a year round pool membership. This is unfortunate.
Last time we were there on our vacation at Vero Beach, there were droves of people who were using DVC as some kind of local country club that were not staying at the resort at the time, and who were laughing about just dropping in and swimming at the nice pool.
It was difficult not to confront them and put a damper on our vacation we had invested in. I'm glad to hear they are more dilligent about pool crashers. While it may not apply to a legitimate DVC member who is purusing the resort planning for a future stay, locals have crashed the pool with no intention of every paying for a room, as thier conversations indicate. This is another case of locals abusing the courtesy of Disney and taking advantage of the resorts causing overcrowding for paying guests. Checking ID's and keeping the pool area for pool guests is sorely needed, and very welcome. There is a public beach right next door to the resort.
Call ahead and get the resort's permission and have a wonderful visit, dinner and swim. I think you'll be impressed with what you see. May I also suggest a drink and maybe an appetizer on the Green Cabin Room balcony, overlooking the ocean. They used to have alligator spring rolls, which were quite tasty. The live music they have nightly is also nice. It's surprising how kid friendly the bar is. I'm glad to read above that they offer an approved "day pass" as one post reports for just this type of visit. That would allow you use of the locker rooms for changing and showering after your swim, which is a nice convenience. With that pass, you'll find yourself very welcomed. You might even catch a campfire sing-along.