Well, at least we know he probably wasn't speeding.
A day after staying up extra late on a school night watching newly-crowned two-time Daytona 500 champion Dale Earnhardt Jr. take home the coveted Harley J. Earl trophy, Nationwide Series rookie Chase Elliott shared a picture of his tardy slip via social media.
The 18-year-old Elliott -- still a high school senior -- gave his reason for showing up to school at 8:29 a.m. as "Watching the race, thought for sure we would have the day off. … #Junior."
Elliott finished 15th in Saturday's Drive4COPD 300 Nationwide season-opener driving for JR Motorsports, so maybe a better excuse -- like blaming it on his boss -- would've worked better.
Still, something tells us after a weekend like that, detention won't be so hard to swallow today.
Check out Elliott's Instagram photo, which was also shared to his Twitter account: