As long as you're removing her swiftly from environments she can't handle, rather than ignoring her getting overwhelmed, I am not bothered.
I will say, this was a silly thread to start given (as evidenced by the replies) most people here do not realise you can 'owner train' an assistance dog entirely yourself, or you can do it with the aid of a charity (Dog A.I.D, Canine Generated Independence, i think there are some others too), or you can do it with the assistance of a private trainer.
So without explaining that, you're always going to get some negative responses from those who think assistance dogs are either born aged 2 and totally trained or can only come from a charity that trains the dog, then supplies it to you.
Do make sure you have permission to take her to wherever you're taking her - it is not a legal requirement for ADIT's to be given access as it is with fully trained AD's.
For those actually interested, AD's can be trained to:
Do physical tasks an owner cannot do - open doors, pick things up etc
Alert to medical conditions - cardiac, seizure, blood glucose
Alert to things the owner cannot hear - alarms, doorbells
Guide an owner who cannot see around obstacles, to pre-trained destinations or places like exit doors, toilets, seating.
Alert to an allergen - theres far too many of these to list, AD's are most useful for the airbourne/contact allergies.
Alerts to medical conditions may look like the dog is misbehaving - for example, alerting someone to an impending seizure may mean the dog wilfully disobeys an instruction to cross a road, or seems to tow them out of a shop or to a seating area, or the dog may seem to repeatedly poke or bark at the owner to get them to pay attention.
My dog alerts to high/low bg - his alert is him putting his paws in my lap and trying to stick his nose down my throat. A quiet alert is no use for me as I am most likely to have a big high/low when very distracted/stressed, or when asleep - if I am calm and able to focus, I am much more likely to recognise the symptoms myself.
Assistance dogs should NOT be taught to approach other people, or to protect people from others. They can be asked to leave a premises if they are out of control in a way that is unreasonably risky for other people - ie, off lead running around, jumping on members of the public would qualify - being a potential allergen for someone who can simply leave the premises would not.