Enjoy the Carnival outside the Sambadrome!
Carnival in Rio hardly ends in the Sambadrome, there are also balls in the Copacabana Palace and beach and other locations.
There are Street festivals which are one of Cariocas usual choices.

Street Carnival in Rio
The street festivals are open to everyone with street bands playing amidst the crowd. Banda de Ipanema, first created in 1965, is one of Rio’s most popular street bands.