Transportation

When I was given the job I asked about transportation. I don't have a car and wondered how I would get to work and around town. I was told that although there is no public transportation places are walk able and I would be getting rides to work from my coworkers. When I got here a few things were apparent from the start. Places are not walk able (or wheelchair able?) My office is a little over 3 miles away and the places to shop are much further. That is a long jaunt to get to work without transportation.

My ride to work is also less the usual. I get dropped off at the police station at 7:10 which is when another intern who works there gets to work. Then at around 7:25-7:30 I get picked up from a coworker to go to work. My coworker doesn't start until 8:00, so she is in no hurry to pick me up on time. She spends most of the drive to work complaining about how this is very inconvenient for her because does not start work for another half an hour. She talks about how I am lucky and should be grateful she does this for me. The part of that I have a problem with is SHE HIRED me and told me not to worry about transportation because it will be provided.
This job is suppose to help me (disabled people) get ready for the workforce. Is relying on rides and constantly being at least 5 minutes late to work every day teaching responsibility? Should disabled workers be taught to be grateful to get driven everywhere?
This also creates an unequal power balance in the workplace. How am I supposed to feel comfortable voicing my opinion on issues when I rely on people to get around? If we disagree about reasonable accommodations will I have to wait outside an extra tem minutes tomorrow?