San Luis Obispo County Bomb Task Force deployed a robot to inspect a suspicious package left at the Paso Robles Walmart.
Officials said they found trash inside the bag that did not pose a threat to the public. The package was reported to Paso Robles police around 11 a.m. Thursday.
Police found a brown paper bag sealed with black tape left unattended in a shopping cart.
Police said the paper bag was located on the east side of the store next to the garden center and some propane tanks.
Sections of parking lot were blocked off, as well as portions of South River Road.
All closures have been lifted since 2 p.m.