Yes, anecdotal reports say that they do sell this item. However, it appears that only selected Dollar General stores carry the product.
To confirm, you may contact your local Dollar General branch.
Their store hours are 8 a.m. to 9 p.m. every day. However, store hours may vary by location. Contact your local store for further details.
For useful information about them and their stores, see Dollar General Store Customer Support's page to get information on a specific topic.