Easy Peasy but kinda down and dirty methods too.
For the VM, use a good Voice Recorder app, play the VM on Speaker and "tape" it that way. A good app can let you save as either a MP3 or MP4 file which you can then copy/send.
I looked on my Spirit and couldn't find the text files. More than one way to skin a cat.
Screen print the pages showing the text. You can then copy/send/print those .jpg files.
Take your phone into court with you if you do in case they want to see for sure they came from Your phone.
Bruce in Ocala, Fl