Towing Issues: towed motorcycle, property signs, storage fee

Question
Last month, 1-8-09, my motorcycle was towed from a parking lot of a business that is behind my apartment complex.  It had been parked in a spot behind the business for about 5 days.  I had it parked there because the battery had died and I needed a place, close by, to keep it for a few days until my next day off.  I figured that it would be okay to park there since there was, and still is, a car parked back there that hasn't been moved in months.  One morning I went back there to check on it and found that a towing sticker had been put on my gas tank.  Luckily it was the day that I was going to get the new battery.  After changing the battery and running a few errands I returned home but parked it in the main parking lot, in front of the business, at around 2pm.  I came back at dusk, around 6pm and it was gone.  The reason I didn't park it in my apartment complex is because they don't allow motorcycles at my apartments.
I figured that the city impounded it and I would go get it in a few days.  Well, as the weather turned bad I figured I'd just leave it impounded as a sort of storage.  The daily fee wasn't too high so I didn't mind too much.  Well, when I did go to get it, a month and a half later, I found that the city didn't impound it and it was privately towed.  The next morning I called the wrecker and found that their towing fee was more than three times the city's fee and the daily storage fee was five times the city's.
I would like to know if there is a way that I can recoup my money from the business owner that had my vehicle towed, during business hours from a busy parking lot, when other vehicles have been parked there, without moving, for a lot longer than my motorcycle was parked there?  To add to this, there are no signs posted anywhere on or around the parking lots that state that vehicles will be towed, nor are there private property signs.

Answer
Since you didn't give specific information about the city, county or state in which you live my response is limited. Also you should have contacted the whereabouts of the motorcycle immediately after the tow for the fees and retrieval procedures. My question is why did you move the motorcycle, by doing this creates more suspicion about the motorcycle not having authorization to park there. Many parking violators do this (in the towing industry we call this a "shell game") thinking that the tow/tag process start over again. Since the motorcycle was tagged you did have a form of notification and will be removed if it didn't have authorization/violation but as I said before, my response is limited.