THis guy says this will happen to me if a cop finds out i have a warrant for a misdemeanor..?

NO NO NO. in most cases they call the county who wants you right there on the spot and ask if they want to extridite. if they dont they they cut you loose, you dont go to jail, and since its a misdemenor i can tell you right now you wont be getting extridicted unless you are in a state that borders the state that wants you.. now, if they cant get in touch with the county that wants you for whatever reason THEN they will hold you until they can contact them, which would be the next morning , then you go free. whatever county wants you has 10 days to come get u if they are going to extridite, otherwise u get cut loose. and yes every time you get stopped they will see if that county wants you BUT if its a misdemenor it mite not even be in the ncic system, usually they just put felonies in there. so your warrents might not even come up at all. and thats REALLY how it is. i know from personal experiance.