Hall County and GSP sometimes sit unde the overpass at exit 8. This was a construction zone until about a month ago. Police here are pretty leniant. I’ve passed these cops at close to 85. They are only looking for the people going faster than the flow. ie: someone going 105 when everyone else is going 90. Also Gwinnet police sometimes sit in Median of I-985 right before the Hall County line. Once again, they are looking for the fastest.. The posted limit at both of these points where these three departments sit is 70.