So yesterday I was shooting for a few hours and with no problems and I put the camera back in the bag for about 30 min and I pulled it out to take more shots. Everything seemed fine, I changed the AF point, half pushed the shutter to focus in servo mode, the lens focused, but nothing when I when i fully pushed the shutter. The camera at that point was essentially locked up. I turned it off at the switch and it turned off, but the sensor cleaning didn't happen. I turned it back on and it was still locked up.
I ended up having to take the battery out and wait a few seconds. Then put the battery back in and everything was fine again. I was just curious if anyone else saw this symptom before a larger failure happened on the 7D or any other Canon body. Or maybe its just a one time thing for me and that is all there is to it.