By Janelle Nanos

You can now do your grocery shopping without having to leave your car at some regional WalMarts. The mega-retailer on Thursday rolled out grocery pickup in three area stores — Avon, Plymouth, and Rochester NH — allowing customers to pick out their items online and determine a time frame for pick-up. When they arrive, they pull into a designated parking area, alert the store by phone, and wait for a Walmart employee to bring the shopping bags to their vehicle. The free service is the company’s latest effort compete with Amazon. The company has made a big push for more in-store technology, and has added huge self-service PickUp towers in 100 of its stores. “Our customers have told us that grocery pick up is a game changer,” said Joe Miller, Walmart’s regional manager of ecommerce for the Northeast. “They are now able to complete their grocery shopping in a matter of minutes – between errands or on their way home from an after school activity – without even unbuckling their seat belts.”