I think she looked out of the van, realized her special stool was not there, sat back down on the seat and eased herself out like my 106 year old grandmother does.
Looks to me like she moved to the near seat by stepping, sat down, twisted and got out.
I think she looked out of the van, realized her special stool was not there, sat back down on the seat and eased herself out like my 106 year old grandmother does.