if she is open to accept the help of a Good Samaritan, a 4 lug tire wrench
I've had to use a 1A10BC dry chemical fire extinguisher on 3 occasions... it was the minimum to just get the fire out... if you deploy with others around, give a warning for them to hold their breath before you discharge
I would second the 4-way cross bar. I was once stuck in the middle of the night with only the OEM supplied lug wrench, and ended up torquing off two lug nuts. Put a piece of duct tape on the bar that matches her lug nut size.
Example -
https://www.amazon.com/Performance-Tool-...9839&sr=8-6