Now, keep in mind that I have been in the a/c business for 47 years. She has been with me almost the entire time and has heard me complain about people not changing filters, closing vents, and other things that they think helps.
Anyway, I come home and sit down to eat and the system comes on and it ramps up to gale force air before backing down slightly. I get concerned because it usually only does this when the filter is dirty. I knew i had just replaced the filter the week prior but went and checked it anyway. Clean. I blow it off, until it does it again. I start checking the static and its high. I immediately go to the attic just knowing she had put something up there and crushed a duct. But no, everything okay up there. I went and sat back down and decided to wait until the weekend to check it out. The wife comes home from whatever excursion she was on and it happened again. Then, all of a sudden it stopped. She comes out of her craft room and says "it got hot out there while I was gone so I opened the vents back up"
. I asked her how much and why she closed them. She said it got cold out there so she closed bot vents almost all of the way off. After I 
and I gave her the 
, she said she wondered why it started sounding like a jet when it started up 
Unless you have a 2 speed or variable speed condensing unit, you could be looking at some long term issues as well.