Speeding cameras wouldn’t have changed that.
“There is little evidence” that automated traffic enforcement is an effective tool at either “improving traffic safety [or] limiting violent interactions between law enforcement and drivers during minor traffic stops … when enforcement is predicated simply on the assessment of financial sanctions," the group Fines and Fees Justice Center argued in its report.
Not to mention, many cameras are hidden and create false positives. They get mailed tickets and have to spend a day in court.
So it doesn’t work because your sample size = 1?