Rockin' it behind the wheel

Allison and I got in my car this morning.  As soon as I started it, the radio music came on pretty loud.  Here's how the conversation went:

Wife: Wow, you were rocking it out last night.

(I went out with friends for Shanahan's 40th birthday).

Me: Yes, I guess I was.

Me: ...wait a second...  I was using your car last night.

Wife: Oh, you're right.

Me: In fact, you were the last person who drove this car.

Wife: Hmmm...  Oh, yeah... and I was thinking, "wow, he's really going deaf".

(of course now her interpretation of why someone would turn up the volume is completely different).