When they arrived, they found a car on the roof with the driver standing next to it.
Giant Eagle employees were evacuated.
Police said the driver was traveling at a high rate of speed and could not negotiate a bend in the road. The driver then struck a curb, went airborne and landed on the roof, police said.
The driver was arrested for driving while intoxicated, WPXI reported.
No one was injured.
Police are still investigating.
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