If you’ve driven for long enough to remember cars without backup cameras, you’ve probably experienced plenty of parking meter anxiety. This scenario might be familiar: You’re in a city, where finding a parking space can be harder than turning left on a green light. Luck strikes, and you find a spot on the street somewhere remotely near your destination. But there’s a problem — you don’t have change and you have to run the risk of getting a ticket, the very thing you’re scrambling to avoid, while you buy a pack of gum in order to get some change to feed the meter.