The accident happened at about 9 p.m. Monday at Mount Carmel High School in Rancho Penasquitos.
One young woman was teaching a friend how to drive in the lot, but when the student driver tried to stop, she hit the gas instead of the break, police said.
“She thought she was hitting the brake and hit the accerator,” San Diego police Officer Kenneth Rawls said. “(The car) struck the curb, and in her panic she just kept her foot on the accelerator and struck the building.”
The impact caused the cars airbags to deploy, and neither woman was injured.
The damage to the building did not appear to be serious, but the car destroyed two metal benches that were in its path.