Ms Lockett also said her own ankle was struck by the MP's car and said she was disappointed that Mr Borrows did not allow time for protesters to move out of the way.
"The police were standing behind us and Tracy didn't have room to step back because there was a police officer behind her."
The two were among around a dozen protesters gathered outside the hotel yesterday.
Protester Phillip-Rewiti Bear was holding a sex toy device similar to the one thrown at Economic Development Minister Steven Joyce at Waitangi last month.
Although police asked him to hand over the object, they allowed him to keep it when he told them he did not intend to throw it at anyone.
Separate from the main group was protester Donna Lawrence carrying a united tribes of New Zealand flag and voicing concerns about welfare injustices.
Mr Borrows has confirmed that Whanganui police have spoken to him about Ms Treadwell's injury. The Chronicle was unable to contact Ms Treadwell.