I know so many locals here in the Denver area that have been invited to these presentations at Grand Peak Lodge, including our daughter-in-law's parents, and the day-use they promise is VERY LIMITED, and when the sales department leaves the resort, that use can be ended at any time.
If everyone they sell in Denver-Boulder gets promised this day use, consider the numbers of people you are competing against on a weekly basis for those parking spots.
We know a Denver firefighter who bought the same thing, but at least they bought a summer week (red season), and we warned them about buying. Now they have big regrets over their purchase, but they wouldn't rescind because they kept talking about day use privileges. That's quite a sales pitch they have going. How much can you park for $11K? Do the math!
You bought a useless week (blue/ green season). You need to rescind. I am giving away a blue week in Frisco, in a townhouse style condo, much larger and with a private garage, and no one will take it, so I know how worthless what you bought is. Someday, you won't even be able to GIVE it away. And guess what? Even if those day use privileges stay for years, anyone who takes your week won't get the day use, because they won't allow resale buyers. Ding! They just downgraded what you own as any kind of investment. Timeshares are worth about zero anyway, and blue weeks cannot even be given away. Why would you pay $11K for this blue week?
I think you are determined to keep the week and hoped someone would extol the virtue of your smart purchase. No one is going to do that.