No. First of all, there are not that many cops in the U.S., not like here in Panama. (My cultural shock when I go to the State is always not seeing any cops around since we have cops everywhere here.) Heck, in the States they can't stop you if you look like an illegal (a Mara Salvatrucha yes). There is nothing to worry about in this area. Business deals and car infractions will most likely be another thing.
Not yet and hopefully we can keep it that way.