I can't believe all they were doing was validating the email, if that's true. Virtually every town, city, borough, county, etc. across the country has a police/sheriff's department, sometimes as small as a few people. Even a few private companies have them.
Sure the NYPD, FBI, etc. are going to (theoretically) have top security, but if any LEO anywhere in the country is good enough, just hack some podunk PD that exists solely to generate ticket revenue and has no IT department, no 2FA, no security training.