Just texted with Ravi. He is on Interstate 5 in California right now approaching "the Grapevine" pass, about 285 miles north of the final destination in San Diego. This is the main North/South interstate in California from San Francisco to Los Angeles and San Diego. Way too much traffic, though I suspect he has his support car running interference on the shoulder. It is faster than US 101/CA-1. Also, I think Ravi had to detour the current fires in Big Sur, so he had to leave the coast line and travel the great (boring) Central Valley of California. By my estimation, he should total 5182 miles at the final destination.