I have a feeling it won't let you leave it in N. Not sure if you've ever opened the door whilst in N, R or D to check behind the car and the smallest movement and it chucks itself into P.
If it lets you switch the engine off in N, I would be surprised. I wouldn't be surprised if it did allow you to select N, turn the ignition off and then it jumps into P again.
Edit -
Taken from page 50 of the handbook, doesn't say if this applies to comfort too but I can't see the car allowing switching off in N
Automatic transmission
You can only take out the remote control if the selector lever is in position P: interlock.
Further edit - comfort access says this but doesn't say you can remove the key from the ignition........which is what you want - page 36
Switching off the engine in cars with automatic transmission
The engine can only be switched off with the selector lever in position P, refer to page 52.
To switch the engine off with the selector lever in position N, insert the remote control in the ig‐ nition lock.
Before driving a vehicle with automatic transmission into a car wash
1. Insert the remote control into the ignition switch.
2. Depress the brake pedal.
3. Move the selector lever to position N. 4. Switch the engine off.
The vehicle can roll.