Conversation so far:
What conspiracy was Mary Surratt involved in?
On December 23, 1864, Dr. Samuel Mudd introduced Mary Surratt's son John Surratt, Jr. to John Wilkes Booth. Booth recruited John Jr. into his conspiracy to kidnap Lincoln.
Did Mary Surratt have co-conspirators?
As part of the plot to kidnap Abraham Lincoln in March 1865, John, Atzerodt, and Herold hid two Spencer carbines, ammunition, and other supplies at the Surratt tavern in Surrattsville.
Did Mary Surratt help Booth?
Shortly before leaving Washington to kill Lincoln, John Wilkes Booth spoke with Mary Surratt and handed her a package.
What was in the package that John Wilkes Booth gave to Mary Surratt?
The package John Wilkes Booth handed Mary Surratt contained binoculars.
What were the binoculars that John Wilkes Booth gave to Mary Surratt for?
The binoculars John Wilkes Booth handed Mary Surratt were for John Lloyd to pick up later that evening.
How did Mary Surratt get caught?
After a search of her house for John Surratt, Jr., agents found in Mary Surratt's room a picture of Booth, hidden behind another photograph and pictures of Confederate leaders .
How did John Wilkes Booth meet Mary Surratt?
Mary Surratt moved to a townhouse in Washington, D.C., which she then ran as a boardinghouse. There, she was introduced to John Wilkes Booth.
Was John H. Surratt Mary Surratt's father?
Mary Surratt was the mother of John H. Surratt, Jr.
Are there any other interesting aspects about Mary Surratt's conspiracy besides having her son be introduced to John Wilkes Booth, working with her co-conspirators, receiving a package of binoculars for John Lloyd, getting caught, and meeting John Wilkes Booth herself?
On April 11, Mary Surratt rented a carriage and drove to the Surratt tavern.

Question: what did she do there
Self-contained rewrite: What did Mary Surratt do at the Surratt tavern after renting a carriage?