Now exit is inevitable, any EU law currently applicable in the UK may be deviated from.
Until exit takes effect (two years from starting the article 50 process) the UK is still in the EU and the law doesn't change. Maybe the law doesn't change even after that – nothing is certain yet.
Exit may not be inevitable: Parliament still has to declare exit, and it's been suggested that they might block it, though that seerms unlikely; and the SNP is trying to scupper the process too.