Am I looking at a mouse in the house aka Car
 

Ok it is summer, and all thou we didn't drive her thru the winter we have had her out and about in the last month a few times. Here in the northwest we have spring rain so we don't drive her in the rain with the low pros. So today hubby ran up to the grocery store, it ran fine, then when he got back it there were issues....Windows, door locks, lights including turn signals, radio don't work. Gas gage dosen’t work & oil pressure light is on. Anyone shed any light what might be an electrical nightmare??
thanks muchly :)

Could be low battery voltage. Have it checked for draw. All that sitting will run the battery down. I keep my Mustang on a trickle charger to keep it topped up, it doesn't get much driving either.