I've been labeling the "U-turn" as "Turnaround" for this simple reason. There's usually a sign that says "Turnaround" with an arrow pointing left directing you to....well, simply....turnaround.
Also, I think service roads/frontage roads shouldn't be named as the same as the highway(s) they serve for a couple of reasons. I've found that shield generation will default to the service road before it creates one on the actual highway. I don't know why, don't know how, but it does. Second, you don't take an exit off of US-82 onto US-82, you take the exit off of US-82 and get onto the service road, which leads me to my next point about service roads.....Have you ever seen an exit for "Service Rd"? I haven't, although I've seen plenty for "Frontage Rd."
From another discussion, somewhere, and I cannot remember with who, "Frontage Rd" seems to be the better name when it comes to these roads. That's my honest opinion.
Just wazeting my time to help you waze your route smoothly.