|"Locked out" Acer Aspire is too much of a common term for google to turn up anything specific. You may want to check the manual to see if that message is mentioned there.|
If it's due to damage from the spill it's not going to be a simple fix and would require at least a partial disassembly of the notebook even if someone posts in with a specific cure.
Is it still under warranty? If so you could send it back and pretend you don't know what happened ("It just stopped working") They'll either fix it or return it as is saying you damaged it yourself. Either way it won't cost you.
You're not really green until you're soylent green.