wipers wont work?

i have a 53 plate renault megane hatchback 1.4 16v and was driving at 50 mph with nowhere to pull over at peak time when my wipers stopped working and the service and engine management lights came on.Not good as it was pouring down.Recently had all spark plugs and 2 coils replaced.Next day couldnt turn the engine OFF but with the steering lock refusing to go off took it to the garage with the help of RAC and thought i got that sorted all at the cost of £280 and now this with the wipers Got a good mind to sue for endangerment to life.Roll on Boxing Day sales as im getting shot