On my first day in university the intro CS professor started his slide deck with "this is what a keyboard looks like", so I walked out of there, into the department office, demanded to see the chair, talked my way out of the first year courses, and demanded to take all of the required 2nd year courses in parallel that first semester. Not sure if the department chair was bemused, or just wanted to drop me in at the deep end, but he agreed to it, and I got out of there with a double-major undergrad and a masters in 5 years...

Where there's a will there's usually a way, but you need to either know how to manipulate the powers that be, or have enough confidence to bypass them.