try painting with wetter coats. Hold the can closer to the dash peice. You will have to meve quicker to avoid running.
There is always wetsanding. It depends wether your texture is peaks of valleys. If peaks then you can just wetsand until smooth. If valleys then will have to spray another coat to fill in the valleys.
question.... was it really hot out when you painted? If so then thats why you have texture becasue the paint dried a little too much before it made contact with your dash peice.
BTW post a picture