Tell ur mate, dont sweat it yet until he received a letter notice stating the date that his license will be suspended.
If the cops tooks his license details down, more likely he will be sent a letter, good if not but dont worry bout it now, usually take a month or 2 for him to receive the letter, happened to my mate who drives an evo8 & got caught in camden valleyway during new yrs, 2months later he got the letter =/