GLENDALE, CALIFORNIA -- I will no longer buy tires from the Costco Tire department. I have been a loyal customer of Costco for many, many years but the service at the tire department is just horrible, especially at the Glendale, Ca location. Recently I purchased a set of tires because my front tires needed to be replaced. The Costco employee helping me told me that my rear tires had to be moved to the front and the new set would have to be put in the rear. My old rear tires are mismatched so I wanted them to stay in the rear and have my new tires in the front. The employee said that would not be possible because of their policy, but that after driving 5,000 miles or more, I could come in for a free rotation at which time my new tires would be moved to the front and the front tires would be moved to the rear. Well I went back to Costco after driving around 7,000 miles. As soon as I tried explaining why I was here to the employee, named Michael Lopez, he cut me off and told me to “show” him in a snappy tone. So I showed him and then explained to him why I was here one more time and he flat out said he would not rotate my tires. I asked him why not and he just kept on saying he could take my car to inspect the tires but that he would not rotate them. I told him that made no sense and then he started yelling at me and then told me “I’m done. I’m not talking to you anymore.” At this point I told Lopez to call the warehouse manager, named Bob Holden to which Lopez said he wasn’t here today. This explained why Lopez was walking around acting like he owned the place and speaking rudely to customers-his boss wasn’t there. Finally the store manager named Ryan arrived but as soon as he did, Lopez ran to him and pulled him away into the garage and spoke with him privately for 10 minutes, lying to him about when had happened. After the 10 minutes, I finally got to speak to Ryan but by then it was obvious that it was a lost cause. Either way, I told him what had really happened and he “encouraged” me file a complaint with the corporate office which I will do next. I have never been treated so badly as a customer. Even though Lopez won’t get into any real trouble, he was still scared apparently because when I returned after shopping to get his business card, he pretended to not have any left when I had seen a bunch of cards on the counter before. I also caught a glimpse of the store manager Ryan yelling at Lopez for his treatment of customers. I had heard about bad customer service at Costco tire departments, particularly this location in Glendale, Ca, but I didn’t think it could be this bad. Oh was I wrong. And after telling friends and family and coworkers about what happened, I got a few stories told to me about horrible treatment from Michael Lopez and the tire department. I will NEVER be a Costco tire customer again. Even Costco as a whole is debatable.