Got scammed by an old lady

Im in upstate SC and we have lots of storm damage (ive rebuilt 17 services since last Monday). This woman calls saying I came gighly recommended and that she needed her 125 amp service repaired. I get there and the only damage is to the meter-socket and the riser luckily it didn't rip the wire out of her panel. I give her a price and she said do it. After i finish i give her an invoice and she looks at me like I'm crazy and said "I thought you were gonna bill duke. I don't have any money to pay you". I didn't know what to say so i told her that maybe her insurance company would reimburse if she files a claim but that i needed to be paid for the work i did within 48 hours. She said it wasn't her problem.... I wanted to throw her across her yard.

Edit: I called her nephew who I've done over $500,000 of work for and the money was zelled into m my amount 45 minutes a go. He said that she's tried shit like this before and he even told her a head of time not to be like this. I do a contact 99% of the time but now i don't care who you are I'm not doing shit until you sign the dotted line.