Hi Al, seeing that you've been a forum member since Aug 2012 it is a pity you are only now adding a post which sounds so negative.Just reading some of your post and applying some initial detective work it sounds very much as if your ABS flashing light could be no more than a 'loose connection' or a contaminated sensor. Intermittent 'on and off' is fairly typical of a wire that has cracked through (due to vibration) or not been fully pushed home, or simply slightly corroded.
As for the false triggering of alarm - this has been well documented in this forum and indeed I've answered another today for same subject. This is usually due to pressing the key fob lock function too soon after closing last door. Close up, count to ten and then press fob. The internal sensing circuits need to complete their 'set mode' first. If you press the lock fob too soon the security sequence is incomplete which results in interruption mode and false alarm later.
Noise from front left - on such scant description it's hard to say. Worth noting that on the Series I model the front drop links were subject to being problematic.
Was it the car-wash or 'collectors fingers' that damaged your motif. The front gold 'bow tie' is known to have a void behind it into which water collects. I sealed around mine with vaseline to prevent water ingress.
All sound to me to be solvable issues and/or the standard joys of vehicle ownership!