ALEC "Bloviator" Baldwin should just stay home - everywhere he goes he gets razzed. On Wednesday night, less than 24 hours before he assaulted a heckler at Madison Square Garden, Baldwin spoke before a crowd of 300 at a five-hour long Town Planning Board public hearing in Amagansett, convened to decide whether the Bistrian Golf Club in East Hampton should be allowed to erect a clubhouse and parking lot. [b]While Baldwin argued against allowing the permit, attendees interrupted him with catcalls, jeers and remarks like, "Why are you still here? I thought you were leaving the country." [/b] When Baldwin at one point complained that the new clubhouse would cause a big traffic headache, one man shouted, "Not as bad as when you had the president at your house!" Baldwin, unkempt and unshaven, exceeded his time limit, riling the crowd even more. Catching Baldwin's humiliation on film was Oscar-winning documentarian Barbara Kopple, who has six camera crews covering the Hamptons this summer for a movie on the over-leveraged resort. No wonder Baldwin flipped out the next night when fans jeered him at the Knicks game.