Doing that should certainly be, at the very least, a felony.
From the local fishwrap here in the Buff...
"Timothy J. Voigt, 42, his son, Eric Voigt, 20, both of Griswold Street, and Bradley J. Campbell, 28, of Barnard Street, all face multiple counts of felony reckless endangerment. "
They will be doing some time in the bin....which is exactly how it should be...