Help! Total shutdown on freeway

I was driving along at 75mph and the door locks started going up and down and various things started clicking and I lost total power.
I coasted to the side of the road and there it sits.

The fusible link was fried and when I made my own link out of some wire, the starter would turn, but no power elsewhere.

I looked in the interior fuse panel and the E/G IGN srs airbag fuse was blown(second from the right on the top row). I tried to put in another and it blew right away. I couldn't really check all the fuses because of the semi trailers going by at 80 mph brushing my feet with their tires. So, there could be some more bad fuses also.

"Luckily" I only had to walk about 3 miles in the cold and snow to my house.

I am gonna try to tow it home after dark with my reliable car (legacy).
Does anyone have any idea what could be wrong?

If things keep going like this, I'll have a SVX for sale soon!
Thanks.