Shock absorber broken?

Hello together, at my Mondeo today with a loud blow a shock absorber (front axle, driver side) said goodbye. I drove the car then directly into the workshop, about 10km, arrived just like that. I already lost parts on the way there, but was a advice of the workshop to drive itself, because there was no one left to pick me up. What exactly with the shock absorber you couldn’t tell me, the car was on stage for a short time, but you couldn’t recognize much n. The spring is probably not broken. However, where the rubber cuff is probably something knocked out or broken. Now my questions: I was told that in this case the guarantee (Ford A1) does not apply, because it is a wear part. Is that right? What are the costs for me, if the shock absorber is changed, possibly also with spring? Does the driving behaviour change, if a single shock absorber is changed, is that at all possible?