I haven't been able to confirm this explicitly, but apparently there are some stricter aspects to this particular law as well:

A proposed bill by state Sen. Fred Risser would protect mothers who breast-feed in public from being harassed, leered, photographed, even standing too close for more than 10 seconds as to catch a glimpse.
Apparently the article on that web site has been revised a few times after it was first published. That is pretty suspicious.

Another apparent part of the original article:

Michelle Moran said she has run into problems trying to breast-feed her son, Ian, in public. "A woman basically said to me that I should probably go somewhere else or make sure that I stayed covered up," said Morgan. "It made me pretty angry." "I mean," she continued, "I might want to breast feed and get some sun at the same time - what's wrong with that?"
It looks to me like the bias of the site is even greater than I thought. It looks like they removed some of the language from the original article that weakened the pro-breast feeding point.

I think a lot of people would find "standing too close for more than 10 seconds" to be a little crazy of a thing to be fined for. I also think a lot of people would think this Moran lady saying she might want to get some sun while breastfeeding is extremely self centered. So they removed that part to make the article sound better.

It doesn't change my opinion on the issue generally, but it does seem like this specific law goes a bit too far.