I grew up in the Southeast and regularly visited Atlanta on short trips. As most people know, I-75 is typically 70 MPH with the exception of a few areas where it drops to 55 MPH. However, it appears, that when you enter the state of Georgia, the speed limit changes constantly (i.e. 70 to 60 to 55 to 65). In many instances, one mile might be 70, suddenly drop to 55, and go back to 70 two miles later. Moreover, there may be only have one posted sign and, if you are in the fast lane on the multi-lane highway, you may not notice (especially if others are whizzing past you in the HOV lane).
Not only is the driving confusing, but GA is nice enough to station cops at each speed limit change to take advantage of the confusion. Apparently, they love out-of-state people and, remarked to me (as an out-of-state person who was snared in their speed trap) that I could just mail in my check. I normally would just chalk it up to bad luck and remit the money without worrying too much. But, I found out that the fine is $778!!!
I publish this posting as a warning to anyone going into Georgia (and, specifically, Atlanta). The money hungry cops (and likely, state itself) are looking for your cash. If you must drive through this cop ridden wasteland, I suggest that you boycott Atlanta gas stations and hotels in favor of the surrounding states who are more friendly to visitors.