Did JWB visit Mary's boarding house after the assassination?

[Pamela]

Weichmann used the phrase "agitated and restless," and Smoot said she was in "a state of feverish excitement."

"Fever" can do that to you
https://www.youtube.com/watch?v=skRzcqK8Xdw

Thanks for the musical interludes, Gene.

Wouldn't the boat be needed either way? Also Mary seemed to take the assassination news in stride if all she had been expecting was a kidnapping. If A. C. Richards's account is right, Mary Surratt expressed no surprise at all and answered questions minimally. Reading his letters to Weichmann, he sounds sincere in the basic events but made mistakes on details, which he admitted could happen due to the passage of time and the fact that he had no notes to refer to.
Weichmann did include Richard's midnight visit in his narrative.