When is it too late for a suppression hearing?

A little over a year ago I was driving back from a local thrift store at 9 o'clock in the evening with a friend of mine when I passed a police officer. He immediately did a u turn and followed me for about 2 blocks at which time I pulled into a gas station to get cigarettes and he drove on by. (My DL was suspended for excessive points accumulation at the time but was due to be reinstated as soon as I sent 20 dollars to the Department of Motor Vehicles) I had my dog with me and just to be on the safe side I told my friend to drive my car to my house and my dog and I would walk the quarter mile home. Upon leaving the gas station my friend was immediately pulled over by the same officer. The officer hollered at me to come over to him and began questioning me about where I'd been and why I was on the street I have been on earlier. He said he saw me pull up to the gas pump on the wrong side and not get gas which looked suspicious to him and that after running my tags he found I didn't have a valid DL. He asked me if he could search my car and I let him. He kept questioning me and my friend about where we had been. This went on for about an hour. He then arrested me for driving on a suspended license and searched me before placing me in handcuffs. Both searches came up empty. He informed me that anything found on me once I got to the police station would be a felony at which point I told him I had a quarter gram of meth in my wallet. He said thank you for being cooperative and I would be hearing from someone in about 3 months. He then took me to jail. I posted bond on the driving on suspended charge which I later had reduced to a non moving violation. One year later I get arrested on a felony drug possession charge warrant.