Quest Diagnostics dismissive, unprofessional, inept Corpus Christi, Texas

I work out of town, away from my hometown.  I leave at 4am and return around 8pm (in the oil field of course.)  I only get off work one weekend/month.  I went to get physician ordered blood work done at Quest Diagnostics on my first day off, Saturday 8/18.  They close at noon and I arrived around 11:20.  The man who saw me was unable to find a vein, did not call a co-worker to attempt finding a vein, just told me "come back some other time."  Well my "some other time" will be a month from now!  This man was not the least bit accomodating, very non-professional and basically inept.  I am quite angry at the treatment I received at this branch of Quest by this employee.