The smell of horses clings to you regardless of how long you were there and what you were doing so yes.
I live in a desert so when I ride in the early mornings (before sun up or just after) the water is already boiling by the time I'm done, hence I end up smelling like horse all day because I have to wait for the evening to take a shower. (if you are wondering about the horse, yes he does get showered after work with cool water. for some reason, there is one hose that gives cool water. funny how our houses don't have cold water but our barn does.)