Absolutely.. Anyone get any pics? Video? Plenty of eye witnesses I'm sure.. Sue their asses off.
The only reason he can go in there is if he has probable cause.. like, when you opened the door he saw people in the background snorting coke off of a dead hooker. Then it would be ok to enter without a warrant.
P.S. If it goes to court, DONT use any witnesses under the age of 21. He'll use that against you.