First, your correspondence courses will not affect your UGPA. Once you finish your first undergraduate degree, LSAC calculates any subsequent coursework, including undergraduate coursework, as graduate coursework. Graduate coursework doesn't go into calculation of UGPA.
Second, if you're already admitted, you probably should check with the academic dean at your law school. If you fail to disclose something you were supposed to disclose, that can cause headaches when you go to take the bar exam.