If it's a Roadster, cycle the top. The electric lock sometimes does not retract all the way after moving the top.

ALL the locks on the car are pneumatic, including the trunk. BUT, on Roadsters, there is an additional electric lock that locks only during the 29 seconds it takes to move the top.
THe way to tell which lock has you stumped is easy:
Try to open the trunk with the lever on the trunk. If the lever is solid, it's the electric lock.
If the lever moves freely, the pneumatic has you locked out - which is a bigger issue.