I'd call the hotel and ask for the GM.
Marriott being Marriott I'd say they'd offer some type of tangible amends (what and how much is unpredicatable) along with a sincere apology.
The quicker you get in contact following the incident, the better; they do keep a record of these things (security/engineering -- whoever responded), but still, the fresher it is in their minds the better. (Also, waiting too long could be taken that it wasn't all that important to you.)
If you don't get a response (which I'd say is highly unlikely) go to online Customer CAre at URL
www.marriott.com/suggest/suggest.mi
Edited to add: It's possible you won't get the GM right away (not available, off site etc.) but you will be put in touch with someone (the GM's AA, a senior manager, etc.
but whoever it may be keep a record of their name along with date, time and a short summary of what was said should you have to reference it later on.
Do let us know how it turns out.