[left front brake rotates]

I just took my bike to a mechanic to have the tires replaced, brake fluid flushed, new chain and brake pads replaced.  When I rode the bike I noticed a slight "clunking" feel at the end of the braking cycle.  It had been a while since I rode the bike so I didn't know if this was a problem or if I was just being paranoid.  Fast forward a few weeks later and I noticed that when I was sitting with the bike upright and turned the handle bars to the far right, something would catch at the bottom of the fairing.  It took me a while but it appears that the mechanic put the reflector on upside down which caused it to in a position further to the rear which resulted in the interference with the fairing when I turned the handlebars.  Anyway, I thought that if he could screw that up then maybe there is something wrong with the brakes.  I tested the front brakes by pushing the bike and activating the front brake lever.  When I did this, I noticed the brake caliper on the left side would rotate slightly with that yolk bar with the hex nut.  Again, I may be paranoid but it would appear that the yolk mechanism is there to allow for some rotation of the brake caliper but I can't be sure.  Any advice?  

[left front brake rotates]

I just took my bike to a mechanic to have the tires replaced, brake fluid flushed, new chain and brake pads replaced.  When I rode the bike I noticed a slight "clunking" feel at the end of the braking cycle.  It had been a while since I rode the bike so I didn't know if this was a problem or if I was just being paranoid.  Fast forward a few weeks later and I noticed that when I was sitting with the bike upright and turned the handle bars to the far right, something would catch at the bottom of the fairing.  It took me a while but it appears that the mechanic put the reflector on upside down which caused it to in a position further to the rear which resulted in the interference with the fairing when I turned the handlebars.  Anyway, I thought that if he could screw that up then maybe there is something wrong with the brakes.  I tested the front brakes by pushing the bike and activating the front brake lever.  When I did this, I noticed the brake caliper on the left side would rotate slightly with that yolk bar with the hex nut.  Again, I may be paranoid but it would appear that the yolk mechanism is there to allow for some rotation of the brake caliper but I can't be sure.  Any advice?