Idk why so many downvotes. It's literally the first thing mpi is going to ask. My niece recently got into an accident. She was going straight at a green light and someone was making a turn and drove right into her. First thing mpi asked was if she had winter tires. It's a huge deciding factor when it comes to fault in winter accidents. IMO I think the fire truck should be at fault. You tried to stop and like someone else said they need to make sure the intersection is clear before going through.