I'm not at all surprised this happened. The United States is in the midst of a major - probably the most major in it's history - crime epidemic. Probably the most major in the history of any human society.
We read in the news every week about brazen robberies and burglaries: People literally driving vehicles into store front windows, grabbing items, then speeding away. Gangs of gorilla thugs invading stores and collectively stealing everything in sight. Car break-ins are so prevalent that police do not even respond nor investigate.
And on top of it more criminals than ever are roaming the streets because the jails are way overcrowded and many jurisdictions have passed leniency laws which seriously reduce penalties for many serious crimes.
It is absolutely not surprising that something like this theft would happen. Par for the course in America 2017. This is not an accident either, its the direct result of the policies of politicians constantly trying to score "humanitarian" points by pandering to the lowest-common-denominator in society in a sickening race to the bottom that's literally leading to societal collapse. Dysgenia is in full-swing in America fueled by "compassionate" policies which are nothing more than pathological delusion bordering on the criminal.