Depending on where you live, your friend might be eligible for using public transportation completely for free with a special id. It is also possible that their job security is going through the roof. One needs to be tested first, though and from what you wrote about them, I’d suggest that you or another person close to them escort them to a clinic. This way they don’t get lost and can get help speaking with the personell when the instructions or other information get too complicated for them.