I had a paver patio sealed last year. Polymeric sand replaced the original sand as well. After everything dried, it appears the roller used to apply the seal spread the polymeric sand. Now I have polymeric sand sealed and stuck to my pavers. How can I correct this? I had the company look at it a few days ago and was told that this is the first time it has happened and that he would try to fix it by using a scraper to remove the polymeric sand..? Will that work, or could that do more damage to my patio?