This is what i found:

18 U.S. Code § 1752 - Restricted building or grounds

(a)Whoever— (1)knowingly enters or remains in any restricted building or grounds without lawful authority to do so;

(b)The punishment for a violation of subsection (a) is— (1)a fine under this title or imprisonment for not more than 10 years

https://www.law.cornell.edu/uscode/text/18/1752

so...you know what will happen to these patriots