Electrical Loss

Just two days ago I was driving when my electronics started to act strange while driving, but I didn't think much of it. Went to my bank, then I came back to my car (150k miles) to find the remote fob not working to unlock the car. Assumed the fob battery had died, so I opened it manually with the key. Got in the car, and realized there was absolutely no electrical power, completely dead, no dashboard/interior lights, and turning the key in the ignition did nothing.

I assumed the battery had randomly died. Checked under the hood for loose connections, etc. All seemed fine. I was about to attempt to jump-start or call a tow truck, then suddenly all power came back and I was able to start the car. I assumed it was some electrical glitch, I scanned my vehicle with my OBDII port. All seemed fine. The battery was charged, and the alternator is charging the battery. The battery is only two years old. I got some odd codes off my scan. No dash lights but the codes were C0051 - ABS, U0131 - ABS, and U3003 - ABS. Went to Autozone to have them test my battery in case my scanner wasn't reading something properly, and I cleared the codes. However, codes are always present. The scanner says that if dash lights are off these are safe to ignore. I am a little confused. The battery tested fine again. No dash lights.

Outside AutoZone the same problem persisted, the dash flickered and then lost all electrical power. After a minute or two all power came back and the car started and drove normally. Brought the car home. I pulled three of the ground wires and sanded where they sit due to FORD painting the ground contact areas. Also cleaned up battery terminals and posts. Have not driven the car yet.

Has anybody had this issue in the past? I will be checking my fuses next.

In any case, it probably needs a trip to FORD but I thought I'd ask here if anyone has any idea what the problem might be and if there is a simple fix that could be tried. In the meantime, I assume I am ok to drive the car unless the problem happens again after my "fixes".  I'm worried now that the electrics could go dead while driving which I don't think would be a pleasant situation to be in!

Thank you in advance for your help.