Andi's itinerary involves arriving in Geneva at 7:40 am, picking up a car from Renault, possibly purchasing an E-Vignette for Switzerland, and driving to Chalons-en-Champagne. Heather's schedule starts at 8 am, includes a visit to her favorite patisserie, and unspecified activities at 10 am, 12 pm, and 2:30 pm, followed by lunch at 1 pm for the best Salade Chevre Chaud, and arrival in Chalons-en-Champagne at 4 pm. They plan to shop for groceries upon arrival in Chalons-en-Champagne, especially since the following day is a public holiday when shops may be closed.