Do you have enough time during this period of time? If you don't have anything important in hand, you can discuss with them. Do not need to argue or quarrel with them, and just take this time as a chance to practice your english. Most important of all, pick up a time that they are busy, for example when they are having dinners or when they are cooking, hiahia:) just cause troubles, and hope that in this way you can rebuild peace in your heart~

It's useless to fight with your husband, since both of you think you make the points. Why not change a way to solve the problem? This way, you make fun by yourself, and from appearance, you are also trying your best to show your politeness and nicess to your neighbor.

For proofs, if it is their car caused the damage, I think you should be able to find their car's paint in your car bah? especially in the place where they hit.