I like how you initially stated where they were correct, but also corrected them in the reversal of the policy. However I would also input the SFPD's actual policy on it which I have stated below.
"The SFPD robots were acquired by the Department between 2010 and 2017. The SFPD does not own or operate robots outfitted with lethal force options and the Department has no plans to outfit robots with any type of firearm."