That was my experience. I was working 40hr a week, so it was like gravy. In reality, it barely paid for books some semesters. I ended up going to Calif State university at Northridge. i could afford that putting myself through.
I went to college piecemeal, working full time and going nights. Because of working in different locales, my transcript would show...
El Centro Jr. College...Dallas
Georgia State ... Atlanta
York University ... Toronto
University of Texas at Dallas
And I racked up zero student debt!