I know this is a little late, but once you get this whole thing figured out for this year, do the winterization yourself from now on. I do it every year. Fall winterization, and spring dewinterization. It's not very hard. Also there are many posts on here at each of those times of the year, to help new people.
This does a few things.
1. You know what was touched, so you know what to look for to fix the problem.
2. You will learn more about your boat, so if something unexpected happens, you will be able to fix it.
3. You will save a ton of money!!! Winterization for me in the Sacramento area takes about 15 min. Dewinterization takes a few hours. Both are time well spent in my boat, with the stereo on.