Exactly. On the Ascent , in Tuscan, we did the same thing, and we were put down for the first apt time. There would be a fairly long line before they opened for dinner, but as soon as they did, we were directed around the line and asked to go to our previously assigned table. Worked great for us as we are early eaters. Most people were unaware of the 2 line system ( reservations and those without) and seemed upset that some were allowed to "jump" the line.
Cheers