Earlier we let you know about the alternative distribution sites for Macbeth ticket vouchers, in the boroughs. Next Saturday is in the Bronx.
Apparently the waiting times at these locations are a fair bit shorter than at the main Delacorte and Public Theater box offices. Someone who went to the Staten Island one last week said that they could get tickets at 11am, and the line had started forming at 9am. About 200 ticket vouchers were available, two per person.
Don't know how generalisable this is to other boroughs, but you might get lucky.