I learned something new today. Up until now, parking has been free for me in the three places to which I primarily drive. I live in a hotel and can park in the basement below it for free. I need only take the token I received from the parking booth and have it scanned by hotel staff. At work, of course, parking is also free and very convenient. Finally, I often go to Carrefour to stock up on food products and the parking is free as well--all you have to do is show your purchase receipt on the way out.
So, what did I learn? Well, I met a friend for lunch and had to park on the street in front of the restaurant. When we exited, I saw a piece of paper on my windshield that looked like a parking ticket. Before I could panic, my friend told me it was just a parking bill indicating how much I owed for the parking. He told me I could take it to any 7-11 and pay it in person. Apparently, they scan it and it's paid electronically after they've received the cash from you. Different from the US but very easy.