LN111 park lights access

[boxer76]

If you follow Toyota's instructions it's a simple job to replace the sidelights on a '97 Hilux 4x4 - just remove 2 screws and pull the lens (secured by 2 pins) out to the side. What if those 2 pins don't look like they've been pulled in the life of the vehicle? I've tried persuasion with a putty knife as a jemmy but they're not budging - worried I'll break the lens.
Anyone faced the same situation?