WMATA using Greyhound, Bolt Bus as shuttles during Metro station closure

The Bethesda and Medical Center Metro stations will be closed through Friday this week for scheduled maintenance. Yesterday, I noticed that WMATA was using Greyhound and Bolt Bus buses for the free shuttle service they are running between Grosvenor and Friendship Heights. Perhaps it is easier to social distance aboard these buses, but they are certainly more comfortable than Metrobuses. Bring in a Trailways to complete the trifecta!