It would be interesting to document the impacts on people who depend on online services to always be up and available and working properly. Here goes -
There are more than a few posts about banking systems going down leading people to carry some cash or having accounts at multiple banks as insurance against being unable to pay; rare as it might be it happens.
A tweeted apology to those affected surely got them into their vehicles quickly if they did not carry their backup ‘key’. (Tesla drivers were not entirely reliant on the app. “There will be a secondary mechanism to get in or out of the car beyond the app, the difficulty will come for drivers if they are not carrying it”).
Tesla drivers might be more attentive to having their ‘backup’ with them to get into their cars. Seems similar to the NBN admonishing everyone to always have a fully charged mobile for when the NBN goes missing.