A spokesperson for Wiltshire Council said they had received a complaint from Mrs Whalley and had launched an investigation.The mother's story:
'We are sorry that Mrs Whalley feels that our officer acted in an inappropriate manner. This was never their intention. The officer was sympathetic to this woman once he realised the situation she was in and offered assistance,' the spokesperson said.
Mrs Whalley, 36, said: 'I was just driving along when he started coughing and spluttering.Go back 10-15 years, and people would take such a tale with a big pinch of salt, because who would expect someone to act in such a fashion, even a hated traffic warden?
'I pulled over at the first place I could, because I saw that he was having real trouble breathing and had started to turn blue. I was really frightened - it was a complete emergency.
'I had been trying to help Christien for about 30 seconds when the parking warden tapped on my window.
'I opened the door and he told me I couldn't park there but I just told him I wasn't parked, I was trying to save my son's life.'
Mrs Whalley, who lives in Salisbury with Christien's father Dean, who is in the army, said she slammed the door on the warden, who then went to the back of the car and took her number plate.
Then he walked back to the side of the car and tapped on the window again.
She added: 'I got out of the car and was trying to pat my son on the back to stop him choking but the warden just kept badgering me.
'I was really panicking but all he kept saying was that I had to move my car. It was staggering.
'He didn't offer to help me at all even though he could see what was happening. I just kept telling him that there was no way I was going to move until I had made sure my son was alright.
'The only advice he offered was that if my son was choking I should call an ambulance.'