Hi recently saved about $250 using the Ohio code.. But when I booked it said I have to check in at the counter... I did sign up to be an emerald member, but I also am renting a full size SUV..so not sure if that's why.. I am very worried they are going to ask for proof and that would be kinda embarrassing... I looked on Ohio state's website and they display the code on the website so I am sure many people try to use it- long story not short: has anyone recently used the code?