He reached the tipping point. A hotheaded Missouri Domino’s delivery driver was nabbed after allegedly running over a customer who stiffed him on a tip. Zachary Nicholus Walton, 36, was arrested Wednesday night after a routine drop-off in Fulton spiraled into a heated, caught-on-camera confrontation. Domino’s driver Zachary Nicholus Walton, 36, was arrested after police say he hit a customer with his car over a tip. Callaway County Sheriffs Office Walton unleashed an expletive-laced outburst over being left empty-handed and plowed his car into a customer in their driveway, according to court documents obtained by Fox News. The irate pizza courier was captured on surveillance video blasting the victim and a witness for being “f—king rude” after they dodged the gratuity, causing tempers to flare, police said. Walton then allegedly needled them, raging, “What are you going to do, b—h?” Come get me,” before heading back to his car.…