Good job I was not there - I can have a bit of sharp tounge and if I was your manager I would have let her leave the store without her purchase - sorry but customer service can only go so far - kinda makes you wonder where her family are if she was blessed with any......... Although she was probably so selfish that no one wants her company and beleive me the next time she sat on her horn I would just leave her there. As Dorothy39 said how did she get into her car and get there in the first place????? She is just playing on the kindness of the staff and their soft side - maybe its time to turn your soft side into hard hide and leave her there or get her list and money from her and leave her in the car get what she needs and bring it out to her gently but firmly explaining that the store is quite busy and too many shoppers for wheelchair access at the moment see if she sticks around