Curious...

So, my ex called my house while he was up asking for my address for the umteenth time. I was at work when he called, so my sister just gave it to him, not asking why or anything. He told me later that he'd "lost his drivers license, so was having his new one sent to my house". I didn't think anything of it at the time, but then yesterday a bank card shows up at my house addressed to him. Interesting, first a drivers license addressed at my house and now a bank account? Does this seem fishy to anyone else? Why would he do that when he doesn't even live in the same state? I'm tempted to send it back saying person does not reside here rather than mailing it to him. Seems kinda strange to me.