I've only tried it at freeway speeds, so I'm going to try at a lower speed today. I posted as it doesn't seem like this would be a good decision and was wondering if it was "only me" ...
Update: It seems the control of shifting into neutral has changed a little. Previously, the car would shift to neutral on a "full" upward push of the shifter. Now, you can select neutral at any speed with a "half" upward push. A full push does nothing except beep.
This actually makes more sense, but the change in behaviour took me by surprise the first few times.