"Very odd situation, he just kept asking for water, and kept saying he was sorry," said James Scarpa.
James Scarpa was working an overnight shift at VIP taxi next door when he heard the crash.
"We heard what sounded like boxes falling off a truck, we came out here to investigate and found the guy in the wall," said Scarpa.
Phoenix Police say the 28-year-old man was taken to the hospital with non-life threatening injuries.
"Definitely a little unnerving, but things happen," said Brandy Mitchell.
Co-worker Brandy Mitchell says she is thankful it wasn't their building.
"It was kind of scary because we're right next door, and the only thing we have is a glass window, so if it were any sooner he would have hit into our building and probably on top of me, because I sit right there in the front," said Mitchell.
Major John Brackenbury is the program coordinator of the Salvation Army; he says he is glad no one was in the building at the time.
"My first thought seriously was I just hope that whoever was responsible for this is okay and that they weren't injured; that's the last thing we want to happen," said Maj. Brackenbury.
Now volunteers are working on the building, securing it, boarding it up, trying to make sure that it's all ready to go so they can reopen tomorrow.
"We're going to try and do everything we can to get this place back, and ready to go for them tomorrow so we can have the public come and utilize this facility for what it's meant for," he said.
The exact cause, and whether the driver will face charges have not been released by authorities.