Probably too late for my suggestion. But...
I will stand up to almost anyone. But if I don't want to, or if it would be to my advantage not to, such as your case, saying something I would be sorry for, I walk away. I will hold my tongue.
My first thought was for you to pack an over-night bag, put your purse and bag in your locked car. Have only your keys, by the back door. If the elders start not "encouraging" you, then you can excuse yourself, to go to the bathroom, and sneak out the back door, or window, and leave. When you get to the hotel of your choice, you can call your husband, and tell him to make the bad men go away, and go to the pay phone at the corner, and you will give him further instructions.
Tell him you will show him a good time, when he gets there.
And sorry you have to go through this crap.