Missouri → Tennessee · Interstate 70 / Interstate 64
The night-time return from St. Louis, Missouri, to Nashville, Tennessee, deserves its own protocol: anti-glare driving glasses on, dashboard light dimmed to the lowest setting, and well-lit truck stops pre-identified as candidate rest stops. The 481 km (299 miles) of Interstate 70 / Interstate 64 and the 4h 35m of driving cross zones with patchy cellular coverage during the small hours. Approximate refuel cost on the way back stays at $40.20 for the 43.7 liters (11.5 gallons) consumed. Forecast reimbursement for the night leg holds at $206.83 applying the prevailing $0.43/km — without an automatic night premium in the IRS standard mileage rate (2025) table. If the company pays night-driving overtime, open a separate line on the Clara receipt: the payroll integration already recognizes the entry.