I'd say just -GENTLY- pull it out, but use force. i.e. don't jerk/yank it, just give it a slow but steady increase in force until it comes out. Use a pair of tweezers if you need to but don't 'pry' it up too far when pulling.
When I got my AceKard 2i and 4GB ADATA MicroSDHC card it fit VERY tightly, but after putting it in and pulling it out a few times it got easier. It's still a bit snug, but not bad.
After that, I would suggest putting the MicroSD card in and clicking the spring loader into place and removing the card manually so you don't break the spring.