Did you give her your insurance information? If not, then you may have an easier time proving that she was at fault if her husband insists on trying to scam you. Think about it this way. Why would anyone who is NOT at fault volunteer their insurance information but not obtain the other party's? It's very unlikely that anyone would give you their information with you being at fault and walk away without yours. I hope you did not give her any of your insurance info (as it seems there would have been no need to).
Make a detailed record of each conversation you have with her, her husband, and the insurance adjuster. Date and sign each document (even get them notarized if you want to deal with the extra effort). If you have to go to small claims court and you're prepared with documents drafted contemporaneously with your discussions, it might prove helpful.