You dont need to leave the trunk open, you can use the key blade to open the trunk (there is a lock cylinder down near the license plate). I have posted this video before, but might be handy here. This is a video of how to tow a FGT.
Direct link https://vimeo.com/210285186
[video=vimeo;210285186]https://vimeo.com/210285186[/video]
Direct link https://vimeo.com/210285186
[video=vimeo;210285186]https://vimeo.com/210285186[/video]
NFGT ‘electric’ brakes will automatically lock the brakes and put the car in park after 30 minutes.