There are 70+ different strains of HPV, yes you can get it wearing a condom (just like any other STD), some of the strains are harmless and only cause warts (not like herpes, just little warts that can be removed), and some of the strains are harmful and cause cervical cancer, throat cancer, and testicular/penile cancer. You can also contract HPV from going down on someone. Some girls don't even know they have it (esp. if they don't get yearly check-ups and even if they do), and some guys don't even know they have it because there's no real way to test for it, and I'm pretty sure it's higher than 1/3rd of society has or had HPV (had meaning yes, it can go away and never come back like chicken pox).
I think OP is an idiot for not wearing a condom tho, herpes, chlamydia, HIV/AIDS, syphilis (although you might laugh because syphilis is such an old one: The disease is still responsible for 19 millioninfections per year and at least 59 per 100,000 deaths in the United Statesalone and is a serious health issue, even in developing countries (AmericanMedical Association 2007). So yes, wearing a condom = better, but to quote The Hangover "We all do dumb shit when we're fucked up." So hopefully his situation works out, this whole thing DOESN'T go to court, and he wears a condom and doesn't have sex when he's drunk again or when the girls is drunk, unless it's with obviously consenting partner, aka girlfriend.