He can have lights.
No law says he can’t
He just cannot run them on a public street.
One of our workers went to jail for having a red strobe in his trunk
They released him, but it was hours later
To echo your post:
16.2397 Certain lights prohibited; exceptions.—
(1) No person shall drive or move or cause to be moved any vehicle or equipment upon any highway within this state with any lamp or device thereon showing or displaying a red or blue light visible from directly in front thereof except for certain vehicles hereinafter provided.