Hi
It's very very unlikely you will have done any damage, in fact it won't have. It will just run a bit crap. But the big question is why did someone steal your mod from the shop that's bang out of order and I would be billing them for all sorts ,your time at �45 an hour, and any other cost. They had not right to take anything off your bike without your say so. And if it was just a service they had no right to do any other thing to your bike. I would go back to the shop and if you are not happy tell them you will call the police as it is theft and also tell them you will be putting what happened at there shop on YouTube and face book, trust me business will not want you to do that, and will do every thing to sort it out. Plus get the shop to tell you what member of staff did it, then ask him why as he had no right to do it Hope this helps.