Driving in the USA
In general in the US, you can turn right at a red traffic light unless it is specifically forbidden. Usually driving in the US is quiet relaxing. At intersections with 4 stop signs, all drivers have to come to a full stop first and the driver who arrived first can drive first again. Also passing on the right lane is very common. The speedlimit applies to all vehicles on the highway no matter if it is a passenger car or large truck or 18 wheeler. It could happend that you drive on the highway and get passed by an 18 wheeler on the right lane. Drivers generally follow the speedlimit since the fines are very high. But driving "with the flow" seems quiet normal.