Pre-law is not a major at UofM (and rightfully so). You can go into law from almost any major. Also, as @“aunt bea” mentioned, I do not think UCs provide ou-of-state financial aid anymore (or are in the process of phasing out the miniscule aid that they do currently offer).
For Michigan:
Try to bring up your SAT score. How can you have an “upward trend” in grades and still have a 4.0 GPA? A 4.0 indicated a perfect All-As record. Your ECs seem fine for an in-state applicant (the Assistant Manager thing could be a sizable plus, especially since you work 20 hours a week and performed well enough to be promoted).