<font color="blue"> DO NOT wait until the last minute. You can not walk in June 30th and expect to be able to sign papers. It takes time to get this stuff pulled together, give at least a week of buffer time. </font>
I walked into a dealer on the last day of the month last year (at the end of a 0% promotion), and they told me as long as I filled out my credit application by the end of the day, I could take the next few days to make up my mind.