ok, so heres the deal. i live in tn and have all my money in tn credit union. i am going to mi to visit relatives and on my way i am going to look at a classic car in oh. i don't want to carry that much cash with me and theres only a chance that i make the deal. how can i go about quickly cashing a check from my credit union for $12000-$15000 cash? do credit unions have agreements with each other? is there any bank that will cash it? i'm stumped at what to do. thanks in advance for all advice.