While driving home from work all of my lights (including the dash and stereo lights) shut off and the car started beeping. It didn't stall out I had full gas, steering and brakes. The lights popped back on in about 5 seconds. Everything now is fine except for resetting the clock which I'll do tomorrow. Does this sound like anything anyone has ever experienced? Or any ideas what this might be? :help

Did you check the battery connections in the trunk?

Never had that happen. Sounds like a maybe a bad connection, as M3Matt said, or maybe the computer reset or something. Pretty odd though.
I'd try to check if any cables are exposed. Maybe mice damage? Was it raining? Drive through any large puddles?

It did rain that day but no large puddles and it really didn't rain that hard..

Yup, sounds like you might have a lose connection on the battery. Check it out.