OMG, what a nightmare.

i commend you for walking all that way. i couldn't have done it.
i've had trouble with getting info and calls back but not to that extent.
i'd report it all to the referring dr. and/or ask to speak to the office mgr.

i'm glad you had your dog with you. hopefully for protection as well as safety.
i think calling the police is a good idea.

my dad had a certified hearing dog and got refused a lot too.
i'd complain to the mayor or the tv stations about the dog/cab thing.
the city should resolve that. gosh, my BP is up for you.

BTW, be sure you keep getting your BP monitored. you could even check it in the grocery store or by the pharmacist. i use a lg cuff too and know what you mean.