In the process his phone slipped out of his pocket and was never to be seen again.
"I noticed about 10 minutes later when I was managing traffic so I got the police officer to call it but it went straight to answer machine. Someone had immediately turned it off."
Mr Babu had offered to give Mr Christensen a new phone with additional services added for free.
"We know it can't bring his old one back but we just had to help the poor guy and make the transition as easy as we can.
"Setting up a phone with everything is usually quite hard so we have offered to help with data migration if it is backed up to a Google or Samsung account."
Mr Christensen was overwhelmed by the offer.
He never expected this to happen but was "stoked" with the response.
"It is pretty awesome to be offered this and to know people care, so thank you so much."
There was still no sign of the phone being handed in to police and Mr Christensen had heard nothing from those who shared his post on Facebook either.
He said the wait continued.