graduate admissions - MS degree after a PhD in physics

I got my PhD in quantum gravity 2 years ago, not from a top university, publishing only 1 paper, no conferences. Couldn't get a post doc, and it has been 2 years struggling in the job market, teaching part time here and there.

I am thinking seriously about getting an MS degree in something that can open job chances for me because all jobs outside academia I looked at required certain skills I do not have, or knowledge never needed during my PhD, all my work was very formal.

My questions are:

1. 
   

   Would graduate schools/ master committees accept me being with a PhD? (I expect to pay my own tuition for that MS of course.) Do I have any chance?

   
   
   


2. 
   

   Of course I am not planning to do MS in physics. How about geophysics MS programs? engineering MS programs? Scientific writing MS programs? MBA programs?

   
   

I am still evaluating my options for what career path I should pursue, but I just want to know if it is acceptable to do an MS after PhD or I will be rejected right away. (I would hate and regret my PhD if I will be rejected because of it.)