[mst]

My initial thoughts are similar:

Screw finding a lawyer.

Do point out that you were leaving the money with the company, and would they mind horribly if you submitted your last 2-3 months' expenses (or whatever a sane expense period is) so that you're less out of pocket.

Don't waste time fighting it, because if they do well they'll be able to afford to squash you and if they don't then there'll probably be no money left by the time you win anyway.

The last paragraph is the most important; if it matches up to your view of current reality then it really doesn't matter who's in the right or wrong here, what matters is it isn't worth your while to pick a fight over it.