The driver started to follow a Pen Argyl School District bus on Pen Argyl Road last Friday around 3:30 p.m., Slate Belt Regional Police said on Facebook.
The driver continued following the bus until it reached its next stop at 1100 Blue Valley Dr., police said.
He then exited the dump truck, approached the driver’s side of the school bus and “expressed his unhappiness with the bus driver in a very expressive and vulgar way, upsetting the children on the bus,” according to police.
Anyone with information about the man’s identity or the origin of the truck is asked to contact the Slate Belt Regional Police Department at 610-759-8517.
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