Probably not, but he would not dare join KFC for the fear that Burger King decides to sue him. Even if he wins the case, he will go bankrupt navigating the court.
And KFC would include a question on their hiring form "Are you subject to a non-compete clause?" to cover their asses. If he answers yes, he is immediately disqualified and KFC moves to the next candidate. After all, it's not like he has unique knowledge for which it is worth getting sued over, unlike Lewandowski. If he answers no and it is ever discovered he had lied, he is immediately fired.
