Denise, we only have our driver for 4 hours, by the time he collects us at the airport, drives us across Rome to our hotel and then back to where we want to tour, we won't have much time left.
I am thinking about emailing him to see if we can change our tour to the next day, just to avoid the hassle. We might not be able to check into our room that early but I am guessing they have someplace secure to stow our bags.