By mid-summer, "Teaser" was back in action on the Potomac. On the night of July 27, she captured two smugglers with a boatload of tobacco in the mouth of the Mattawoman Creek just south of Indian Head, Maryland. She destroyed the boat and sent the prisoners and contraband north to the Washington Navy Yard. During the night of October 7, "Teaser" and another flotilla ship (extant records do not identify her companion) noticed signalling between Mathias Point, Virginia, and the Maryland shore. The two ships shelled the woods at Mathias Point, but took no action against the signallers on the Maryland shore other than to urge upon the United States Army's district provost marshal the necessity of constant vigilance.