Police are crediting a driver with helping to stop a potentially deadly situation by calling 911 Tuesday morning.
Police say the woman called police around 10 a.m. after she witnessed erratic driving from Chelsea Reed on Route 140 in Mansfield, Massachusetts.
Officers recovered a white powdery substance, a hypodermic needle and a pipe stuffed with marijuana inside Reed's truck. The officer suspected she was high on methadone, heroine and marijuana.
Reed was falling asleep at her arraignment in court Wednesday, and later posted bail after being charged with an OUI.
"I mean, you hear about the heroin epidemic, it's everywhere," the 911 caller said.
The woman, who didn't want to be identified, felt making the call to police was the right thing to do.
"As she pulled up behind me I stayed on the phone because at that point I felt like it was my job to make sure somebody was aware of it," the caller said.
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Police are now using the woman's frantic 911 call and pictures from the scene as a public service announcement displaying what should be done when coming in contact with a driver under the influence.
"I'm a mom and there's other people just trying to go to work and my brother's a tow truck driver and you hear about them getting hit by people doing what they aren't supposed to be doing," the caller said.
Late last month, hundreds attended the funeral of tow truck driver Dan Coady, killed by an alleged drunk driver while preparing to tow a car on Interstate 495.