When at the range as they finish their course of fire Hondo says "Cease fire! Weapons on safe! Holster!" The firearms they are using are Glock handguns, which do not have a user selectable safety switch like some pistols. The only safety is built into the trigger which is always active and not able to be defeated.
When at the shooting range Hondo is asked by the Police Chief if any of his people were SWAT material. Hondo replies that his deputies were enthusiastic. "Deputies" is a title for the sheriffs department, not a police officer in a police department.
What was actually said is they're a spirited bunch Deputy Chief.
Roughly 10 min 8 secs before the end of the episode it is apparent that the .50 cal machine gun is loaded with blanks.
The racist motorcycle cop threatens to make Hondo wait an hour for a drug dog and Hondo allows him to search his trunk. Hondo would know it is illegal to detain a driver past the time it would otherwise take to complete the traffic stop. Hondo has already invoked probable cause in objecting to the search. It is inconceivable that he would not refuse the search.