OP had advance notice of a cyclist and was able to react/plan accordingly for no other reason than the fact that the cyclist had reflectors on his bike.
Reflectors that came on the bike right out of the box and always work as intended.
Nobody has to remember to buy and install them later or clip them on or charge them up or replace their battery.
I feel sorry for the hardcore bike fashion queens who cannot understand this.
Keep matching your shoes, water bottles and handlebar tape though ladies