[iBook] What will happen? (I painted my iBook and it needs to go back)

[PowerMac 5500]

I painted my iBook a month or so ago.  Now I need to send it back to 
Apple because it won't start unless I reset the PMU and take out the 
battery (this happens *every* time I want to use it.  My problem is that 
I painted my iBook silver (stupid, stupid, stupid).  Will Apple refuse 
to service it because I took the cover off?  Should I strip the siver 
paint and go back to white?  If yes, does anybody know what brand/type 
of white paint is closest to Apple's and what kind of stripper to use?
TIA