Electrical Issues...

[mustang_06]

So earlier this week I discovered after work my battery was dead and needed a jump. Got a buddy to help out and made it home with no issues. I figured cold weather got the best of the battery and it was weak. Later this week I was having the winshield replaced (New England is the worst in the winter for rock throwing trucks!!) when my wife calls and said the truck wouldn't start again. Got it jumped again but when I turmed the ignition off, the battery light stayed on and the door locks would not unlock. Frustrated, I called the dealer in R.I. (whom I do not like because they refuse to work with my extended warrenty company) and took it in to have it looked at. 5 hours later, I get it back. Dealer said a bad ignition switch and a battery ($580.00) were all that were wrong. Drove it home, releived unitl....got home and turned the key off. Battery light on again. So here are the symptoms so far...
Battery light on after key removed
Accesories do not turn off after doors opened
Anticipate a dead battery again tomorrow
Any ideas??? Cant afford to keep driving to another state for poor troubleshooting skills. Thanks