1996 Honda Accord Power steering belt

I was having problems with power steering and had the rack and pinion replaced and the car aligned. It ran well for two days. Then, it started rattling and when we looked under the hood, a belt had slipped and shredded. My husband took it off (said the car would still go) and the power steering does not work again. Also, at the same time, the odometer stopped working, but the speedometer still does. Could the garage be responsible for the slipped belt? And, could the odometer stopping be connected to the power steering problem (we also had the oxygen sensor replaced at the same time) or the oxygne sensor problem?