Unless Sri Lanka Cricket lodge an official appeal with ICC Cricket Operations, at which point the ICC will appoint a Match Referee to look into the issue.
This is what the ICC's Colin Gibson told me via email yesterday night. The relevant portion of Gibson's email is in full below:
The ICC Code is applicable to the England players.I first asked Colin Gibson about this on Sunday. He replied to me almost immediately saying "The tour matches are under the auspices of slc". I then pointed out the relevant rule from the ICC's Code to Gibson, after which he sent me the above response.
However at a tour match, we do not have a match referee at the match. Accordingly, the offence could be reported to ICC Cricket Operations Department who would then appoint a match referee to determine the matter.
We have not received a report as yet
Make of that what you will..