Audi Repair: 96 Audi A6 - Trunk wont open, transient currents, aaa service

Question
My electrical problems seem to be growing exponentially every day!  
I can't get my trunk to open no matter what I try.  I am using the master key which has always worked. I have tried the trunk release button in the glove box, but it doesn't make any noise and isn't doing anything.  I hear the locking mechanism working in the car when I lock it from the doors or from the trunk, but it just won't open the trunk.  
This all started when......(this is a long tale so you can stop here if you want)... a AAA service call turned into a nightmare when the guy shorted my battery at which point my alarm went off and the sunroof opened.  No matter what I tried, I could not get the sunroof to close, the manual hex was stripped so I had to take it to the dealer.  They said the motor was blown ($700 to replace - I didn't go for it) and forced close the sunroof.  While at the dealer, they said they could not open the trunk.  I insisted that they should be able to and then they called back and said they got it open.  Now that I have the car back, the trunk won't open.  The horn that sounds when the car is locked was working fine, but after trying to get the trunk open so many times, now it is not working and I think the car thinks that a door is open (maybe the trunk?) because when I start the car the warning ding sounds and the interior lights stay on like if you have a door open, but all the doors are closed!  The horn won't sound when the car is locked.  
I really don't trust my dealer's knowledge on this and don't know what to do.

Help! Thanks.  

Answer
I agree with you 100%, you need to find a new dealer.  It sounds like the trunk may have been forced, the sensor that determines if the trunk lid is shut sounds like it is not functional.  Also I am not sure why shorting the battery would cause the sunroof to open; there have to have been some high transient currents throughout the electrical system to cause these problems.  I would start by checking relays and fuses, to ensure everything is getting power correctly.  The trunk mechanism may need someone looking at it that knows what they are doing.  Some local import specialists are more resourceful than the dealer sometimes...  Let me know,  Jan