score:3
According to the tourist association
Tijdens Hemelvaartsdag (29 mei 2014) zijn de winkels in het centrum geopend van 12.00 tot 17.00/18.00 uur.
In English it reads that the shops in the city centre are open from 12:00-17:00/18:00. The 1st of June the shops will be closed. For cafes I would be highly surprised if they are closed, so I assume they will be open as well.