Well, reserve online. This system is like the Zip car, but for parking spaces instead of cars. Found the ad for this on the subway. Not sure if it's mobile-compatible. The video demonstration is helpful, and be aware of fee for oversized vehicles, which I don't think in included in the initial search results. The subway ad promotes theater parking, $10 for up to 10 hours, so maybe look for parking in midtown around 42nd street.

Here's the link: http://weparknewyork.com

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