Alec Baldwin is back on his bike — and still breaking the rules.

The hothead actor — who was arrested after riding his bike against traffic on Tuesday — pulled the same lame-brain move on Thursday.

Baldwin pedaled against traffic for a roughly a block on East 10th Street and Broadway, near his home on Thursday morning.

He then rode on the sidewalk — which is also against street rules — and narrowly missed a pedestrian.

On Tuesday, NYPD officers cuffed and arrested Baldwin after he mouthed off to cops who stopped him for riding his bike against traffic on Fifth Avenue near 16th Street, police sources said.

Sporting workout gear and a stern look, Baldwin was spotted walking his two small dogs and buying coffee at Oren’s Daily Roast on Thursday. He also clutched a coffee cup while riding with the flow of traffic.