I got back home yesterday from a cross-country road trip, over three and a half weeks, and covering about 12,000 miles.
As I noted upthread, I am semi-comfortable with driving in the pandemic, driving solo with minimal contact with other people, and with my full arsenal of facemasks (regrettably, too many of the other people I came near were unmasked, so I had to steer clear of them as much as possible). The outbound leg of my trip took a southern route, passing through many of the states where cases have been increasing, though not Florida and Louisiana. The return leg was more northern, from Wyoming east with some jogs into the northernmost tier of states like Minnesota and Michigan. I passed through 28 states in the process, missing most of the Pacific Northwest, Montana and North Dakota, most of the northeastern states (some of which would have subjected me to quarantine requirements, so soon after my visits to states on their "restricted lists"), the middle states from Kansas to Kentucky and Tennessee, and Alaska and Hawaii.
Part of the challenge was navigating the ever-changing coronavirus-related restrictions. The biggest potential problems,
discussed upthread, were quarantine restrictions in New Mexico, and travel restrictions in the Navajo Nation in the NW corner of that state and the NE corner of Arizona. New Mexico's quarantine requirement was, and remained, limited to people arriving by air, and I had no trouble with driving through the state or staying overnight along I-40. I needed to travel a little in the Navajo Nation to clinch my final segment of US 64. No checkpoints or other hassles. However, I had to adjust my itinerary to avoid the evening tribal curfew on weekdays and the recently-reinstated 57-hour weekend curfews, so I made sure to exit the reservation well before the 8pm weekday evening curfew. Also, I was concerned about California, and added three days/two nights there only after confirming that the coast was clear. The situation worsened while I was there, so I didn't extend my stay in California.
I clinched a lot of US routes, in order of completion US 378, US 278, US 175 (re-clinch), US 64, US 212, US 14, US 18, US 34, and US 30 (re-clinch). I also clinched US 54 in Texas and New Mexico, US 84 in New Mexico and Colorado, and US 81 in South Dakota. I missed a clinch of US 23 in Michigan due to a bridge closure, similar to a pair in Georgia that account for the rest of my missing mileage on that route.
US 266 (entirely in Oklahoma) was a frustrating missed opportunity. It is close to and parallel to a part of I-40 I traveled, so I could have easily clinched it had I not realized it was there until it was too late.
While in California, I clinched what I think is all of the preview usaca system, subject to double-checking as I can now turn to getting that system ready for activation. In Nevada, I clinched all but two of the TM-mapped routes in Clark County (Las Vegas and suburbs), missing only NV 158 and part of NV 156 which were closed by wildfires on the days I was there. On the last day of my trip, I drove the south end of MD 546 to re-clinch the active usamd system.