Well, no, he wouldn't have your IP... Unless you 'liked' it, there should be no way for him to track you.
So facebook doesn't show any data about for facebook event/fan/business/etc. page owners about the users who just randomly visit a facebook page? Facebook insights just shows data about people who like their fan,etc. page? Or people who are logged in to facebook and visit their fan,etc. page? But does not show data about people who are not logged in their accounts just visit the page?
Nope, he or she will never get informed about it. Either your visit or your ip adress. But every account holder shoulder has to maintain some rules like that if you want to share some others photo or content, give some credit to him or her also.