Help Parking Brake cable emergency Caravan

My wife's 97 Grand Caravan--the handle that releases the parking brake
just came off. I opened the plastic cover an discovered that the cable
end has come off and disappeared inside the sheath,

I would like to get the car towed in, but I am afraid that all wheels
are locked. Is there any way to unlock the wheels so that I can safely
tow it/drive it to a repair shop.

Thanks in advance.

Vijay