A canon priest's impressive clothing

Agustín Fernández de San Vicente, Canon of the Cathedral of Durango, traveled in 1822 to California as a political emissary. He was a gambler and a dandy who, unsurprisingly, dressed better than the mendicant friars ministering to Californians at the time: > ... the canon's attire was really striking and colorful. His outfit was reddish in color. Whenever some girl or woman would be taken aback by the splendor and colors of his outfit, she would ask, "Who is that man?" [_Testimonio of Juana Machado_, in Beebe and Senkewicz] > > He wears a small calotte, a blue frock coat and a three-cornered hat.... [_The Khlebnikov Archive_] It's not clear to me whether the two quotes describe the same outfit. Traveling through California and conducting meetings with local officials, would the canon have worn some kind of clerical clothing, vestments, or some other non-church clothing? Would his cathedral college have entitled him to fancier clothing than a parish priest of the same diocese?