Nah, go the emotional route. Tell the driver how much you appreciate his looking out after you. That in your condition you have a hard time keeping things straight and that people like him are the greatest of gifts. Pile it on deep and syrupy. You will get those "deliver by 7:00 pm" packages in the am and he may even start leaving them for you with out a sig.

You can always raise hell later.

Barney