Have to agree with Dan. I went back after 9/11 and whilst I had some fun and gained some experience, it was probably the worst career move I ever made. The seniority list and LIFO was ignored in a mad panic to unload people and then of course strictly applied when we came back 12 months later and subsequently when promotions started again. It was my choice and so my mistake but it goes to show how being in the wrong place at the wrong time can totally screw your prospects for years in this game.
Easy to be wise with hindsight but my advice to those furloughed would be, if you find something else and have any prospect of a command then stick with it and don't make the same horlicks of your career that I did.
Good luck.