My former employer just terminated my employment due to a preliminary drug test result before I had the opportunity to advise them of my medications that might make me fail. She then told me I was forbidden on property and that if I contacted and employee

After a preliminary drug test which I tested positive for methamphetamine which one of my depression medications can cause a false positive I was advised of the result through text and told that if I contacted any employee that she would call the police. The following day I asked my previous supervisor for a copy of my results and was advised that it would come with my final check. She then blocked my number preventing me from asking about any other termination details or allowing me to get my personal items from work. Finally, I had messages from a couple of previous coworkers advising me that the employer forced them to block my number and sent a message to entire staff that I no longer worked there and that I had been advised not to contact any employee.