The first that came to mind for New York is NY 17, exit 68. I think it fits in spirit, but doesn't meet the criteria (it's signed for a through street, albeit a very residential one). Also, this will be tough to find in New York generally, as speed limits below 30mph are uncommon–and where you do find 25mph limits, they'll be substantially no different in character than 30mph zones.
A major exception to the above will be NYC, so maybe that's the place to look. However, the two-way criterion will limit the options there.
Also, if you consider parkways as freeways, then you will find a bunch more examples.