I wasn't trying to be a downer...just pointing out that most metered parking is with a maximum limit, 2 hours, 1 hour, 4 hours, whatever. So, by re-feeding the meter, you are defeating the purpose of the meter. Do people do it? I am sure. Would I actively encourage people to do it? No. It is a law, one that I might not agree with...but the law is the law.

Google, "refeeding the meter" and you may find that it is illegal in many, many places.