Time is running out. The period for public comments on the proposed New York City rules that would restrict public photography ends Friday. The rules would call for groups of two or more to get a city permit and $1 million in liability insurance to use a camera in a public place for more than a half hour. The same would be needed by groups of five or more wanting to use a tripod in a public space for more than 10 minutes. These rules were proposed by the Mayor’s Office of Film, Theater and Broadcasting.