On the 17th of September, visits to TD Bank Branches by first six and then four #NoDAPL protesters were sufficient to shut two branches down. On the 20th of September, one activist paid “recon by action” visits to three TD Bank branches to see if this meant a single protester could also shut them down. Results were mixed. The TB Bank at 15th and P was repeatedly hit by Keystone XL protests including a barrel lockdown during that campaign so they were quick to lock their doors so long as that one protester entired the ATM lobby and did not just stand on the sidewalk. If a customer entered that lobby alone, the doors were quickly unlocked and relocked.
With multiple protesters on site, the TD Bank Branches at 801 17th st and at 14th and F sts would keep their doors locked, locking out customers and effectively shutting down. One protester could not accomplish the same. No response to a single protester in the street at 801 17 and with bike cops hanging around the nearby White House it was deemed risky to enter the lobby alone. At 14th and F a lobby entry was not detected in time by security, allowing a quick protest inside the branch itself before security responded. When the protester returned to the sidewalk the guard monitored the inner door closely here but did not choose to lock it.
Thus is is concluded that teams of 4 can reliably shut down TD Bank branches, allowing a team of 12 to take on three TB Bank branches at once. Teams of two or three have not been tested, solo operations (each person takes on one branch) can get some branches to lock up but can only close them down by resorting to civil disobedience.