And enters the Ministry of Magic?

Until you get to one like near me where the exit to the roundabout is 300 feet from a traffic light :)

Not all CFAs are efficient, though - check the one in Sugarhouse, SLC (1206 E 2100 S, Salt Lake City, UT 84106). Drive-thru customers have to drive through the parking lot entering and leaving, with people trying to get in and out of spaces at the same time.