My ex- company is DIRTY

Today was the official lay off day.  My coworkers went in and turned in their badges.  They got their severance packages and left.  About 6 hours later, 4 or 5 of them got a phone call to come back..... as temporary workers.  They'd be making less money with no benefits and would start next Thursday.   I get officially laid off Monday, and would not expect a phone call.  But this makes me really mad.  All summer I thought the company was treating us good, with giving 3 months notice.  Letting us have benefits for 3 months post lay off.  Then they do something dirty.  UGH.