Why can't I fukk in a restroom? Its not public indecency.
"A person is guilty of public lewdness when he or she intentionally
exposes the private or intimate parts of his or her body in a lewd
manner or commits any other lewd act: (a) in a public place, or (b) (i)
in private premises under circumstances in which he or she may readily
be observed from either a public place or from other private premises,
and with intent that he or she be so observed"
Public lewdness is a class B misdemeanor.

If you're fukking in a public restroom and a kid comes in, you're gonna get hit with a sex offender charge.
Same with this. If you're fukking in a "private" booth and there's a kid anywhere in the restaurant....you could get hit with a sex offender charge.
Why take the risk?
Fred.