The right direction is going to be in the direction of a lawyer licensed in the appropriate jurisdiction, and familiar with the appropriate laws. With that said, there are a couple of items that are unclear to me:
1) Whose border guards searched the items? US? Canada?
2) Are your parents American or Canadian citizens?
A gunfight is not the time to learn new skills.
If you ever have a real need for more than a couple of magazines, your problem is not a shortage of magazines. It's a shortage of people on your side of the argument. -- Art Eatman