I bought a bag a chick starter and grower at my local TSC. I put it in my truck and it stayed there a few days till I needed it. When I opened my truck it was crawling with tiny white bugs not much bigger than grains of sand, an they were on everything that was in my trunk as well (a few blankets, change of clothes, flash lights, etc.). My question is what are these and how do I get rid of them? They are starting to crawl everywhere! I have dusted my truck with a coop dust that is permethrin but I'm not sure if it is helping as this morning I seen a few of them on the back quarter panel of car. I needed to get them out of my car before they get near my ducks or in the cabin of my car! Please help with any advise! I asked at the store and they didn't seem to care, I even found some on a product and showed it to them, they said it was possible it was a mite and just put it back on the shelf to sell.