Although the prolonged shutdown has ended, its effects continue to ripple through the economy far beyond employee furloughs.
Retail store traffic fell an average 7.3 percent each week of the shutdown compared with the same time period last year, ShopperTrak reported Friday.
The area around Washington faced an even more drastic decline of 11.4 percent in the week of Oct. 6-12 versus the same week last year, the analytics group found.
"This time of year a certain number of people really like the Halloween cards, and I found that was definitely cut back," said Suprabha Beckjord, owner of a 30-year-old gift shop, Transcendence-Perfection-Bliss, near the National Zoo.
(Read more: Has consumer spending gone to the dogs?)
While people enjoyed being out in the beautiful weather during the shutdown, not many wanted to spend money, according to Beckjord.
"Quite a few people came into the store to buy one or two cards, but not the other things they might have wanted," she said.