In a statement, released to PA Sport through the club, Ferdinand said: "I kicked the wall in frustration at the result as I have done in the past.
"Unfortunately a lady was stood by and I accidentally brushed her with my foot.
"I went back to make sure she was okay and apologised profusely.
"Credit to her she laughed it off and was very understanding.
"She said she wasn't hurt. I have arranged for a bouquet of flowers to be sent to her."