If what happened to me happens then you could be without a car quite quickly.
I was locked out of the car on the 8th March at work. Fob didn't work, neither did the NFC chip which is supposed to be the backup and neither did phone access. car was literally dead, no idea. What I should have done is called roadside assistance and they would then have taken however long they take to then get someone out to me or tried to remotely fix it. As it was, I thought on my toes and called one of the techs who had visited me a month or so prior. 10 mins later he called me back and was able to send a command to the car remotely, to reset it. That worked.
However, Roadside assistance has been removed and the tech that did that for me has now left the company. So warning to those who do buy one, that could happen and you would be f**ked coz who is around to fix it now?