Ashleigh and Cameron Reid live in Perris and say they saw the disturbing incident on surveillance video while they were away.
In the footage, the Amazon driver is seen searching the bed of their truck before dropping off the package on the porch. About a minute later, the driver appears to urinate next to their truck in the driveway.
The couple says they got a camera alert on their phone when the delivery was happening and couldn't believe their eyes when they both saw the video.
"He's literally facing my camera, front and center, and urinating on our driveway and on our truck...," said Ashleigh. "I saw it and I was infuriated, honestly. Just infuriated but also glad that we weren't there and the kids weren't there."
Cameron said he reached out to Amazon multiple times about the incident. He said he eventually spoke with a supervisor and was told they would document the incident.
Eyewitness News contacted Amazon, which said they apologized to the Reids when they first reported the incident and they are still investigating.
Amazon says all drivers who deliver to Amazon customers are not Amazon employees, they just deliver packages on Amazon's behalf.
The company provided an update to Eyewitness News Wednesday afternoon, saying the driver no longer delivers for Amazon.