3312DC

I was at the track saturday...
after I was done for the day, I loaded up, cooked out etc, then 5 hours later I started my car to go home
The EPS light stayed on and I had no power steering. I drove the car around a little, and it didnt come back.

So I drove the car to a gas station (15 mins away)
after gassing up, I started the car and the EPS light went out. The power steering was back, except turning the wheel way to the right caused some interuptions in the power steering. the wheel felt notchy.

I drove home (30mins on a highway) and pulling into my driveway I could feel it agian.

I didnt spin or take the car off the track. I was pretty aggressive, I bounced off the curbing a lot and my front end was "hopping" a little during understeering. all normal for me.

what could my problem be?