A truck driver was subjected to a random drug test and tested positive for marijuana use. After a confirmatory test verified the initial result, the driver was terminated. He denied having ever used marijuana. The driver passed a hair follicle test performed by an independent laboratory eighty-four days after the employer's urine test. The hair follicle test is aimed at identifying per- sons who persistently use drugs over time. The driver also pointed to problems with the employer's drug-testing procedures. Specifically, the drug test was administered by a supervisor de- spite the availability of non-supervisory employees, the container had been removed from the sealed kit before the driver arrived to be tested, the driver was not instructed to wash his hands at the proper times, access to the collection site for the specimen was not restricted, and the collection container was not kept in full view of the driver during the time between when the speci- men was produced and the container was sealed. Did the employer fail to comply with the drug- testing procedures required by the Department of Transportation? If so, was it negligent in how it conducted the drug testing? Why or why not? (Mission Petroleum Carriers v. Solomon, 106 S.W.3d 705 (Tex. 2003))