Why was the car towed in the first place, and are you sure the tow did the
damage?
Damage of this sort is not that unusual anymore, especially if you have had
some
intimate encounters with train tracks, potholes, parking barriers, etc.

IF the towing company did the damage, then I think they owe you some help,
but
it may be really difficult to prove that they were at fault.

You can ruin a good set of tires quickly by driving them with bad alignment.
If
you intend to keep the car, you must have it professionally done. If the
frame
or rear axle is bent, then straightening or replacement, whichever applies,
will
be necessary.