It happened at a Taco Bell in Winter Haven around 4:30 p.m. on Saturday.
Police said a 77-year-old man was getting ready to leave his parking spot.
The man said he placed the car in reverse and then into drive.
The car jumped the curb and crashed into the Taco Bell.
Police said a customer had been at the exact spot of the crash, but had just walked away to get more taco sauce.
No one was hurt in the crash, but the building sustained significant damage.
Earlier this month, Taco Bell offered free food for a year to a man who survived for five days in the central Oregon snow by eating taco sauce packets.