From the ordinance, I read it as stating the right to have locally-produced and sold foods. As you say, an ordinance mandating such foods would be a stupid idea.

Again, I'm puzzled as to why such an ordinance would be necessary. I have never seen any serious regulatory obstacles to small farmers selling produce. As I mentioned, we have thriving farmers' markets in my town, and there are even regular stores that specialize in local produce. Driving down 101 there is an abundance of small roadside stands selling fruits and vegetables.

Unless Maine has some very weird state laws, this seems at first glance like a solution with no problem.