Inspection of gasoline samples. Power of department of agriculture to implement, §10-1-157. Inspection of self measuring pumps. Power of department of agriculture to implement, §10-1-159. Violations, §10-1-169. Enjoining, §10-1-156. Sales. Advertising retail motor fuels. Advertising free gifts or services, §10-1-164. Requirements for signs, §10-1-164.