I flunked out and returned 12 years later. I've been told by pre-law advisor and professors who have been writing LORs for decades that if you have a strong record of accomplishment in the years you are out of school, adcomms will basically disregard anything older than 5 years.
In fact, one of the reform proposals for law school admissions is to stop requiring the reporting of grades older than five years. They don't report LSAT scores more than 5 years old, even though the LSAT is supposed to test an aptitude that shouldn't change much over the years. Meanwhile, grown adults with professional records are still held accountable for mistakes made when they were basically kids. It's not fair.
Bottom line: good LSAT, good resume and your old grades should matter much. I hope!!