Any offence where by people could have been seriously injured or killed as a result should have a life time ban especially if the person is old like that, I mean let's say they got a 2 year ban, would it really be wise to let her loose in a car again when she's even older
And absolutely

at " police had to put their car infront of hers" before they could get her to stop, I mean WTF? Anyone who can't see a police cars flashing lights in their rear view mirror also deserves a lifetime ban IMO.
Get tougher on these folk who clearly shouldn't be on a public road.