To the OP. According to those clearly placed signs you did right as long as the driver entered at the same point you did (bottom) of circle. Both lanes can exit at top. or vise versa. Right lane cannot go 3/4 around in this situation. Sorry thats what is clearly posted! Sorry I just watched one this morning go straight through the circle..entered in the right lane, changed lanes and changed lanes so he didn't have to navigate in a single lane. This will get you killed or a severally damaged vehicle if the situation was right. He did this at several circles....you know who you are if you're reading this. Or...maybe there is more than one if a bunch of you are going "hey thats me". I did force him into a single lane at one point

Made my day cause I caught up with him and rode through in the left lane right next to him keeping him in his lane

Teach by showing HAH.
Anyway back to the original post. Folks....I drive the circle correctly and will navigate in the left lane from top to bottom or as a lot say "straight through". If you cut in front me or cause an accident please be aware...you will be held at fault. Everyone who is behind a wheel of a vehicle needs to learn the laws, if you don't know, don't understand, stop by the sheriff's annex and they'll instruct you, give you a pretty little flyer. Its the drivers responsibility to know what they're doing behind the wheel.
And yes the idiot factor has gone up tenfold in the last month.