(I was driving, or rather passengering.)
The segment that the note is on is signed Market Street.  Just to the NE of the traffic light icon visible on the map (to the SSE of the note) is a road sign that shows Market left and Kickemuit right.   So the segment from the light going NNW is also Market but the map has it labeled as Kickemuit.   Now, it's possible some RIDOT data says otherwise and the town's public works people put up a sign that isn't quite.  It would be great to hear from a local.