Vets had to remove the towell from Monty the python's stomach after eating the towel the night before.
Apartment blocks nearby have been evacuated as a precaution.
The incident occurred in South Carolina on Friday.
Officers have spoken with the reptile’s owner.
Bruce Baker had returned from shopping with three of his children when they discovered the 7ft-boa constrictor in their front garden.
The park reckons this snake is the biggest they have caught and it was longer than the height of a double decker bus.
The animal was found in a shoe stored in luggage.
A 72-year-old woman accidentally packed a snake in her suitcase after visiting her daughter in Australia and brought it home to Scotland.
A human rights lawyer said the interrogation methods were torture and violated police policies as well as several laws.
One snake had been dumped in a bin liner, while the other was spotted lying in the grass.