The FAQ specifically says that they will not be tracking or storing the data of your vaccination status. Therefore they can't be linking it to your pass or ticket...I am guessing that your proof of vaccination will be linked to your Epic Pass or Day Ticket, which they will scan when you enter a building.
Probably will just need to get things uploaded into their system at the beginning of the season and then will be all set for the remainder of the season
Are you storing my vaccination status anywhere?
No. Vail Resorts will not be tracking or recording any guest vaccination status information.
What if I am not vaccinated or forget my proof of vaccination?
For guests who forget their proof of COVID-19 vaccination or have not been vaccinated, they will not be permitted to enter our indoor, on-mountain quick-service restaurants. We recommend they bring their own lunch or visit an outdoor on-mountain restaurant or other dining establishments where proof of vaccination is not required.