The Mets and City Hall have hit an unexpected bump, albeit a possibly small one, in bringing their plans for a Coney Island stadium to the public.

During yesterday’s 1-0 win over the Dodgers, the Mets announced they would hold a press conference this afternoon to update the situation of their new A-League team, the Queens Kings.

Top execs with the minor- league team said they were scurrying to pull together drawings of the proposed 6,500-seat Coney Island park, to open in June 2001. Drawings of the temporary 3,500-seat stadium at St. John’s were also supposed to be unveiled, as was the team temporary logo.

But hours after the press conference was announced, it was quickly postponed. No word was given why it was put off.

The stadium, which will be named at a later date when a naming-rights deal is signed, has been in the works for 19 months, since Mayor Giuliani brokered a deal in September 1998 to bring to the city low-level minor league teams of the Mets and Yanks.

The team will be called the Queens Kings for a year while they play this season at St. John’s. After its inaugural campaign in the Big Apple, the team is likely to change its city name to Brooklyn and hold a fan-based naming contest to choose the moniker.

The Staten Island Yankees last year began a two-year stretch at a temporary stadium at the College of Staten Island. They will also move to a 6,500-seat stadium in June 2001.

The two teams meet for the first time on June 30 in Queens, according to Steve Cohen, the GM of the Kings.