An angry Pocono crowd booed Denny Hamlin after he slid out of his winning Toyota and shoved Kyle Larson's car into the wall.
There were so many boos because the crowd was so large - Pocono sold out the NASCAR race and boasted its biggest crowd since 2010.
A series of fan-friendly enhancements to the track that hosted its first NASCAR race in 1974 contributed to the increase.
Attendance numbers are rarely released by NASCAR tracks.According to Pocono President Ben May, around 50,000 grandstand tickets and 3,300 camping spots were sold.
May told me, "We can't fit another car, RV, or person in here today. "Pocono demolished the old victory tower, which was built from a parking garage, and
Added new viewing decks, food trucks, improved access for driver introductions, and a new victory lane.
With a great view of the start/finish line, the decks were packed with fans. Hours before the green flag, lines snaked through the garage for autograph signings and Q&A sessions with drivers.