Widdop, still rattled, was reluctant to talk about the incident but quipped: "I won't be seeing it again, put it that way.
"I'll be riding my pushbike to training the next few weeks."
With his fifth goal of the match, Widdop became just the third player in the history of the joint venture to score 500 points and sits behind only Jamie Soward and Mark Riddell on the club's all-time scorer's list.
Prop Paul Vaughan paid credit to his skipper, describing his ability to shrug off his jangled nerves and lead the side to its third win from four games this year as inspiring.
"I came up with (under-20s prop) Blake Lawrie and we were coming down the road and got held up in an accident," Vaughan said.
"I was actually really nervous because I thought we were going to be late to the game.
"I drove past and I saw what I thought was Gareth's car and we got here on time luckily.
"He was a little bit shaken up but to his credit he's a true professional."