I did the same thing. Although I actually walked out half way through a shift. Meh, I was getting paid a student's allowance and didn't need the job anymore. And the only reason to work is if you have to.

2 weeks notice is a load of balls, they break schedules by telling you at short notice to work extra hours. It's hypocritical of them to complain if you decide to quit at short notice.

Fuck the corporate world. BEYoTch!