texas rat snakes don't go for much, esp. w/c. w/c snakes tend to be more nippy, have to be tested for parasites and commonly carry mites. if she keeps other snakes, i would not keep it anywhere close to the others...as in a few rooms away. The parasites and mites could infest the other snakes or reptiles.
Let it go. You won't get maybe $15 for it. Not worth your troubles, IMO. It was born wild, let it stay wild.
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-Chris
0.1 Licorice Stick Black Rat
1.0 Black Rat
0.1 Vietnamese Blue Beauty
1.0 Green Tree Python
0.1 Texas Bairds Rat
The educated are the few. The uneducated are the masses.
North American Rat / Corn Snake Care Sheet