Still guiding when not in use?

I've had an Alpine EZI DABsystem fitted to my 08 Honda Civic EX. Now the installers have caused a fair bit of interior damage including the heated seat switches and the cigarette lighter. The switches have been replaced by my local, trusted garage. On the way home I could hear the sat nav lady every now and again and the beeps when coming to a turning. Will it reset itself or am I in for a massive bill?

Pete
February 2013