“ According to 49 U.S. Code § 46317, you cannot fly, or attempt to fly, an aircraft without the proper licensure. The penalty for violating this code can be substantial, with a maximum punishment of 3 years in prison and a fine of up to $250,000.”

https://www.skytough.com/post/fly-without-pilots-license

That’s a lot worse than getting pulled over with no driver’s license.