If it went down the way you said it did they did nothing illegal. They asked you and you complied. If they made threats and made you turn out your pockets then you may have something. Also depends on your state laws but if you put medication in another bottle other than the original it is a misdemeanor. There is also laws on the books that forbid someone from stopping you from getting a signal (i.e. radio, cell, dish tv). Might see if anyone else was asked to turn out there pockets. Might be a discrimination issue too. Most work places have gone to hell and are getting worse.