Create an annotate dataset from the points data and color the points black if inside the map, and color them red if outside.

data points;
   set mapout;
   length function style color $ 8 position $ 1 text $ 20 ;
   retain xsys ysys "2" hsys "3" when "a" text 
"";
   retain rotate 360 style "solid" function "pie" position "5";
   color=
"black"; 
   size=2; 
   if missing(county) then color="red";
   output;
run;
title "Red dots are outside of Wake County";