Gotham needs some ‘paw’ and order. Shady dog dealers are illegally selling puppies out of the trunk of a Mercedes SUV for thousands of dollars , The Post has learned. At least two men were caught on video Oct. 23 and posted on TikTok brazenly hawking close to a dozen miniature and toy poodles in broad daylight in the Diamond District — despite the state banning dog sales and the city outlawing backyard breeding last year. “You can probably get $3,500 to $4,500 for the dog,” barks one of the men