Do I have to buy my tickets as part of a package from universal to use the express pass that is provide as part of the Hard Rock, Portofino & Royal Pacific Guest benefits? I would like to purchase my tickets from undercover tourist and stay at one of the resorts that give the express pass. Before I book, I just want to make sure tickets from a 3rd party won't cause issues with the "free" express pass.
You can buy your tickets anywhere. The tickets and express pass are two separate things, printed on two different papers. You have to have tickets to get into the parks, but then you can put them away and just keep your EP out to scan at rides. No worries!