Quote Originally Posted by Sasquatch View Post
The only vehicle with a law-provided right-of-way is the ambulance with its lights on. After that, the vehicle to the farthest right (left of where the ambulance was) has the right-of-way, then the next-farthest right (across from where the ambulance was), then the least-farthest right (right of where the ambulance was).
Nobody ever said if the fire truck had it's lights on or not. Assuming that it's going to a fire, and considering that going to a fire, fire fighters typically put lights on in the truck, then it's safe to assume that the fire truck has it's lights on, putting the fire truck and the ambulance in the exact proportion of importance, giving right of way to both of them.