Obviously this is about the power outage in Spain.
While normally, if a card declines, people would probably have to leave their IDs with the restaurant while they went to get a withdrawl from their bank; this is a power outage, withdrawls wouldn’t work. It would be silly to arrest people because of a power outage. So I’m assuming people just have to give the restaurant owner/management their identity info with a promise to pay?
And power outages shouldn’t affect buses, since they run on gasoline/diesel, but the payment system processing transit passes might not work. Do buses still get run during a power outage and they just let people on for free, or do they just shut down the bus lines?
(I haven’t been paying attention to news.)
But if power is out I could see some traffic lights eventually failing to work, at which point I might guess the driver/organization sees it as a liability to continue the routes. So, I don’t know if the payment system would be the limitation.
Around here the traffic lights stop working right away if the power is out. If you’re in the city traffic will suck for a while, but then it will drop to very little and the buses will be fine.