They shouldn't have bothered.
Keselowski gutted out the pain and made good on his promise, exiting his car only after it had reached Victory Lane - where he showered his crew with some of his sponsor's beer in celebration of winning the Good Sam RV Insurance 500.
"Today feels like a real win, for all the adversity we overcame," said Keselowski, whose sentiments quickly turned to his cousin, a Navy Seal who recently lost a friend.
"I'm no hero, I just drive a racecar for a living," he said. "Heroes are the guys that died in Afghanistan this weekend, and I want to spend time thinking about them. Those are my heroes."
The race was halted for 1 hour, 40 minutes due to rain with 75 laps to go, and it appeared that leader and pole sitter Joey Logano might come away with his second career victory.
But the weather and track turned in Keselowski's favor, as the sun reemerged and the No. 2 Dodge came to life.
Keselowski surged toward the front, snatching the lead away from Kyle Busch on a restart with 16 laps remaining and then prevailing with a sprint to the finish line.
Kurt Busch, Keselowski's teammate, outdueled Jimmie Johnson for third.
"I was amazed that Brad raced the whole race," Kurt Busch said. "My thought was that this is a place where you can swap out a driver without losing a lap. But this was Brad's day."
With five races remaining to qualify for the Chase for the Sprint Cup, Keselowski helped his cause by winning for the second time this season and climbing to 18th in the standings.
Series leader Carl Edwards finished seventh and left Pocono with a nine-point edge over Johnson. Six drivers are within 26 points of first place, as the series shifts to Watkins Glen International on Sunday.
Harvick a truck winner. Kevin Harvick pulled off a dominant and strategic victory in the rain-delayed Good Sam RV Emergency Road Service 125, conserving enough fuel to outlast runner-up Kyle Busch in a green-white-checkered finish after a late caution extended the race to overtime.
The Camping World Truck Series' second-ever visit to Pocono Raceway was stretched over two days, with the event stopped by rain after 17 laps on Saturday.
When the racing resumed on Sunday morning, Harvick's No. 2 Chevy Silverado was the class of the field, and he wound up running out front for 44 of the 53 laps en route to his 10th career win.
In the battle for the top spot in the series standings, Johnny Sauter edged out Austin Dillon for fourth place to increase his lead to five points. But Sauter's No. 13 Chevy failed postrace inspection, and NASCAR officials are expected to levy a penalty when they convene on Tuesday.
Dillon's brother, Ty Dillon, faired even better later in the morning when the Pennsylvania ARCA 125 went green a day after getting washed out.
Ty Dillon led 34 of the 50 laps in the No. 41 Richard Childress Racing Chevrolet, extending his winning streak to three. With seven victories on the season, Dillon leads the ARCA Racing Series by 410 points.
Cherry Hill's Tom Hessert started at the back of the field due to an engine change, but rallied to produce his best showing of the season, finishing fourth.