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Raspberries (and blackberries and all those similar) have a short shelf life which is why you rarely see them sold in stores. They might last a day or two but go bad fast (even with refrigeration.) Blueberries also go bad quickly but can last a bit longer. Yes, refrigerate them, but don't wait too long to eat.
You can now dip the chocolate covered strawberry in sprinkles/nuts/coconut etc. or leave plain. Transfer them to a piece of parchment paper or silicon baking mat and refrigerate for 10 minutes. The chocolate covered strawberries should be kept refrigerated.