You can either park at Val Richer and walk to and from the church (20min walk) or park near the church and then drive to Val Richer after the cermony. Parking near the church : 13 rue de la Font Marguerite, 14340 Saint-Ouen-le-Pin
Cocktail attire or whatever makes you feel fabulous! It might get chilly in the evening, so bring a jacket. Part of the reception will be in the garden, so you might want to avoid stilettos.
A van will make rounds to drive you home safely between 1.30am and 5.30am. A duo of drivers with their car will be available to drive you home in your own car and park it where you stay.