IMHO, applying to UC’s is a terrible use of your energy. Even if you did get in, the OOS cost is exorbitant. And if someone tried to engineer the worst possible admissions algorithm for you, it would look an awful lot like the UC’s: test-blind, freshman grades don’t count, and the AP “bump” is capped at 8 semesters. Plus, the application is so different from the common app that it will take a lot of your time to rework your essays for the UC format. It’s truly not worth it.
Have you looked at the Raikes School at UNL? https://raikes.unl.edu/ It’s a highly competitive honors cohort program - pretty sure your GPA is below their average, but they consider test scores and rigor so you’d have a chance at it. The core curriculum combines CS and business, and then students can choose any related major, including CS. You’d be in a high-performing cohort that gets terrific opportunities and a unique blend of CS, business, and design that could be really appealing… plus it would be extremely affordable (affordable “sticker price,” MSEP discount for IL residents, merit, etc.)
FWIW, CMU is another that disregards freshman grades… and the CS school is so competitive that I doubt it would be a realistic reach even with your 4-year GPA. At any rate, even schools that consider freshman grades are not huge fans of a downward grade trend. There are plenty of excellent schools that would love to have you, but working entirely from ranking lists is going to make for a tough admissions season. Although, if you could be happy with ASU, you can certainly give the “Hail Mary” schools a try.
I agree that the NEU combined CS/business major could be great for you (and very flexible in terms of moving between straight CS and combined majors, in either direction), and saying yes to the alternate-entry options would improve your chances, as would an ED application. I would seriously consider that over [searches brain for a word somewhere between “using” and “wasting”] your early-cycle shot on an Ivy, Stanford, or CMU.
California-wise, USC would at least consider test scores and your fully-weighted four-year GPA, and they’re especially good for a CS-business combo. They’d love your entrepreneurship, too.