Why didn't Andrea steal the governors truck when she was running to the prison to tell Rick about his plans?

Andrea did A LOT of frustrating stuff in that episode and the finale in my opinion! Why would it take her so long to pick up those damn pliers!?!? Argh...

She probably didn't want to attract a lot of attention, they would have to open the gates and all of that stuff and she wanted to sneak out. She also wanted to run through the forest and be able to sneak around and hide behind things so that if Governor drove Von she could hide better!