First, I understand your feelings about leaving your baby with them - totally. I can't stand the thought that someday, I may have to leave my car while some weird problem is driving the service dept. nuts.

HOWEVER... speaking as someone who has earned a living troubleshooting electronics since 1980, I understand how frustrating for the techs it can be to figure out electrical/electronic problems. Add to this the fact that these are electronic/COMPUTER problems and I can see giving them time to work on it.

Don't be too hard on them, I sometimes have systems or products that I look at which take DAYS of thinking about before I "get it". Once in the past year, I woke up one night and it "Hit Me" -- or at least I hoped it did. I drove the 15 miles to the 911 center at 2:30am just cause I could not get to sleep after coming up with a theory. I worked for an hour and had it fixed. Was back home in about 2 1/2 hours.

Came in late the next morning - 'cause I earned it!