LOS ANGELES—The Grove, a mall known for high-end shopping and dining in Los Angeles, added a coil wire fence to enhance security after a spree of smash-and-grab robberies in California amid the holiday season. After being targeted by a burglary last month, the shopping center installed wire fencing at its entrances and exits, and all of its stores have their windows coated with a special ballistic film, which provides comprehensive protection against break-ins and burglaries. On Nov. 22, about 20 people broke into the Nordstrom at The Grove, which was two days after 80 people rushed into a Nordstrom in San Francisco and stole merchandise. Three suspects were taken into custody soon after The Grove was burglarized. Police have found stolen clothing items and a cash register in the suspects’ vehicle, according to local news reports. Also, on Nov. 21, a Louis Vuitton and a Saks Fifth Avenue store in …