Maybe I have no idea, but what they really care about is their statistics and a 4.0 from Anartica University Basket Weaving will make it look like they admitted a 4.0 student. Almost an entire law school admissions decision is based on your index number, which is the pure number of your UGPA x. Your LSAT score. I think the formula is on LSAC somewhere, but your UGPA NUMBER nothing else matters in determing your index number.
I probably spoke a little to broadly, but odds are the OP is not going to get into a top 3-5 school. Nothing against them, but there is a 90% chance they won't score on the 90% of the LSAT, which is the prerequisite to having a top 3-5 school even consider your application. If the OP gets a 172 awesome! However, I am not betting on him/her or anyone to bust a 172 out on the LSAT. So the best thing to do when going into undergrad with the ambition of going to law school is to first choose a respectable major that you enjoy, because there is a strong chance that after 4 years you might not even want to go to law school anymore. The differences between when you are 18-22 are DRASTIC. However, if they maintain the goal they should get a decent degree and throw in a few free A's in weighlifting, basket-weaving, etc. That is just playing the game a little bit having a 3.6 instead of a 3.4 because you throw in some Free A's along the way is just smart and it certainly won't hurt you.