call a tow truck company like AAA they well come and open the car for you like the front door they can.open it they have the tools to do it and once you get in your car I'm sure that car has a trunk button to open the truck from inside the.car or even.the.back seats come down
The cost of a replacement trunk key for your 2003 Infiniti M45 could be anything between $25 and $35 or slightly more. The exact amount will depend on your location. Just contact locksmiths within your area and find out how much this is going to cost you.
I have an 06 m45 use the remote to open it. You can open the trunk with the remote, inside the car or by pulling down the separator in the back seat. You can open it to the trunk and reach in to get it or use a coat hanger.